The Discerning Merchant's Price Guide is an organizational tool for magic items & pricing. It provides categorical tables for magical items: all the weapons are together, all the staffs are together, and so on, similar to how items were laid out in 3.5 by slot. As a DM, if I need to quickly find a sword to award a player, I want to know exactly where to look and what my options are. Page numbers references to items' descriptions in various books are also included, along with rarity, attunement requirements, and my own favorite feature: suggested item costs. Gone are costs that range from 5,000gp all the way to 50,000gp; you've now got a concrete number to start with that you can quickly adjust to suit the economy of the area at hand. Version 4 additionally adds a table that suggests modifications based on settlement size.

Updates for Version 4 include magic items from six more sources, bringing the document up to date as of August 2020.