Mundane Equipment Prices

Not all equipment an adventurer might use needs to be infused with some sort of magic. In fact a vast majority of adventurers would find a practice like that completely unsustainable. Whether it's day to day resources or investments meant to secure a safe position, mundane items make up perhaps not specifically the bulk of an adventurers expenses, but certainly a bulk of what they carry.

Wealth

Adventurers border the lines between exceptionally rich and perpetually broke, they might find a few thousand gold worth of treasure somewhere, then spend it all on special equipment that they hope will stop them from dying on their next adventure. To a commoner 10 gold could see them through a year if they already have good work, it might even save a family when it has a failed crop. Most peasants are in exceptional debt and a couple hundred gold could see them pay that off, however not in the form of trade, as they usually don't own what they sell. The crown and guilds only generally think in the value of large scale and rare resources, strategic positions, and reputation. Wealthy merchants and lower royals think only in terms of large scale gold. Most standard artisans do not own their equipment or materials, but instead have special deals with a noble or guild to utilize it, in return for free or highly discounted work.

Rest and Relaxation

After an adventure many an adventurer will find themselves at the nearest inn, the most common likely costing mere copper a night, while those that house merchants often cost silver or even gold. Rarely an adventurer will find themselves in an exceptionally luxurious inn meant to house traveling dignitaries and royals, these places often only accept 2 things, gold and royal favor. Often times, however, small towns are all pitching in to relieve themselves of their problems and provide free stays and food for adventurers that take up their jobs.

Armors and Shields

Shields

Weapons

Martial Ranged Weapons

Ammunition

Silvered Weapons

Many more powerful monsters possess enhanced healing abilities and physical resistances that render mundane weaponry less effective, some of these monsters' resistances are negated by silvering the weapon in question, while this doesn't work against all enemies it is far easier to silver a weapon than to acquire a magical one. The cost of silvering a weapon, or 10 pieces of ammunition, is 100 gold, not just representing the cost of the silver but also the expertise and time needed to add silver to the weapon without making it less effective.

Mithral Armor, Weapons, and Ammunition

While technically not magical, mithral is still exceptionally useful. any item made of mithral has half its normal weight and is nearly unbreakable by mundane means. Armor made of mithral has no strength requirement and does not impose disadvantage on stealth. One handed weapons made of mithral gain the light property, while two handed weapons lose the heavy property (if they have it) and become versatile, thrown weapons and ammunition (made in batches of 10) gain double their short and long range distances, all weapons and ammunition made of mithral count as being silvered. Any competent craftsman can produce equipment out of mithral, however it costs 1000 gold to do so, not counting the cost of the base equipment.

Adamantine Armor, Weapons, and Ammunition

While technically not magical, adamantine is still exceptionally useful. Any item made out of adamantine is nearly unbreakable by any means. Adamantine armor turns any critical hit against you into a normal hit. Adamantine weapons and ammunition (made in batches of 10) automatically crit with max damage against inanimate objects, and count as being silvered. Any competent craftsman can produce equipment out of adamantine, however it costs 1000 gold to do so, not counting the cost of the base equipment.

Arcane Focus

Used by arcane magic users to focus their magic. While they are not completely necessary for a spellcaster to cast spells they are exceptionally useful. While casting a spell a spellcaster can perform the somatic components for a spell with the same hand that holds the focus, as well as this a spell focus negates the need for material components that do not have a written cost. Spellcasters that cannot use a spell focus can use a component pouch instead.

Druidic Focus

A druidic focus must be found in nature by the druid in question, Generally this takes about 1 hour of time and can coincide with a short rest, while many druids will seek out their preferred environment to find this focus, they may do so in any natural environment.

Holy Symbol

A holy symbol meant to actually call upon the power of a god must be produced by a believer of the faith it represents, you cannot simply purchase it from random merchants or such. A Cleric or Paladin may receive any viable holy symbol from members of their order or religion for free, or can produce the symbol in question over a short rest with materials worth 25 gp.

Tools

These kits possess all of the required supplies necessary to perform certain crafts, or feats, while on the road, be it the thieves tools that possess things such as lock picks, practice bells for learning to pickpocket, and the materials required to make a mold of a key, or an alchemist's supplies, which contain the simple reagents, containers, and tools for performing activities such as identifying potions, creating small amounts of acid, and testing alchemical materials. It may also represent the equipment needed to play a game, or may simply be an instrument. Most of the time proficiency is required to effectively use these tools, however someone with general knowledge may still be able to attempt their more basic uses.

Travel and Mounts

There may come times where adventurers have long or difficult journeys ahead of them, or when the environment provides a unique challenge that only certain vehicles could overcome, in this case with the right money and contacts one such adventurer can acquire mounts, vehicles, and the supplies and crew necessary to use them.

Waterborne Vehicles

Occasionally an adventurer might be forced to take to the water, be it a river, ocean, or lake, they will find need of a waterborne vehicle, certain bodies of water may not be able to support certain sizes or types of water faring vehicles. A waterborne vessel does not have benefits nor penalties for moving at a slow or fast pace, unlike land vehicles, and requires a certain amount of crew to function correctly. If less than half the number of crew specified for the vehicle is present, then the ship cannot be controlled if the anchor or mooring is raised, and it becomes at the whims of the water. If at least half of the necessary crew is present then the ship can be controlled and directed, however the ship will have no combat or evasive capabilities if it usually has such. Any more than the specified crew has no benefits, however they may take up slack if members of the crew revolt or die. The passengers count is separate from the crew count, and is 1/5 the value present if instead of cramped hammocks, private quarters are provided. A ship is guided by the captain, if the captain does not have proficiency in waterborne vehicles or navigation they will have to make a check (depending on the type of vessel) to successfully guide it, a crew is much more likely to mutiny against a captain that does not know what they are doing.