Relic recipes have been in the $500 range and Legendary recipes have usually been in the $1000 range not including the relic cost. It seems that relics are often crafted and UR's collected for the legendary recipes during the year the tokens are released knowing that the Legendary can be crafted later. Relics with a recipe cost of 500-600 often sell later for 300-400. Legendary tokens that cost 1300-1600 to craft often sell later for 850-1100. (CoA is an exception. It holds its value currently but a lot more are now being crafted which is increasing the supply.)
The following analysis is what I have observed and sheds some light on the supply of trade goods and the secondary market prices.
VTD has changed the landscape for trade goods. Increased amounts of treasure being generated has increased the supply of Rare, Uncommon and monster bit tokens in circulation. This in turn has increased the supply of Aragonite, Elven Bismuth, Oil of Enchantment and Golden Fleece available. The increased supply has driven the secondary market prices down (AG 20-25 down to 8-12, EB 11-14 down to 6-8, OE 16-18 down to 6-8, GF 70-85 down to 30-40). The amounts of these goods needed in recipes has not changed significantly.
Traditionally the more plentiful trade goods (Darkwood Plank, Mystic Silk, Dwarven Steel, Minotaur Hide, Philosopher's Stone, Alchemist Ink and Alchemist Parchment) have greater quantities required in recipes. Enchanter's Munition has remained static. DP, MS, and PS are generated in larger quantities in an 8K auction and thus are usually cheaper. AI and AP are subject to demand depending on how many potions or scrolls are being used and not transmuted. (It is also worthy to note that DP, MS, PS, AI, AP, and EM are generated in C, U, and R quantities and generate the goods via points.
DS (gone from 3 to 5-7) and MH (gone from 3 to 5-8( have recipe quantities similar to the past amounts. The only source for these is common tokens and both are in units. They have increased in price due to the lower supply. Common tokens are not generated in treasure.
IMO Now add to the above the following:
2018--One Legendary Recipe usable by all classes--Thor's, one recipe for use by three classes--Pern's, and 9-10 popular UR's
2019--Three Legendary Recipes for 3 specific classes--Iktomi's, Raphiel's, Widseth's, and 11-12 popular UR's
2020--Four Legendary Recipes for 4 specific classes--Ava's, Benrow's, Bog's, Ralson's, and 17-18 popular UR's
2021--Three Legendary Recipes for 3 specific classes--Ashenne's, Druegar's, Viv's, and 13-14 popular UR's
2022--Three Legendary Recipes for all classes--Luna's, Muk's, ToH (from Treasure Box) and 15-16 popular UR's
2023--Three Legendary Recipes for all classes--Boaz's, Vim's, and CoA, and 13-14 popular UR's (It is noteworthy that IMO Boots is not worth crafting vs. the cost/benefit and Boaz's, Stalker Bead of Focus, Stalker Bead of Skill and TE Bead of Bounty (UR) compete for Bead slots) .
Just some other thoughts on crafting recipes, supply and demand. Remember we spend discretionary dollars for enjoyment and the chase.