I remember a few of my guildmates in Classic Classic using TSM to figure out what herbs to buy for potion/elixir-making so they could make a profit, which seemed a little odd to me. I don’t go much farther than “is this random blue drop or limited vendor-sold recipe worth the effort of posting for a decent amount of cash?” since I don’t really see much use in having several hundred thousand gold when the biggest single expense in the game is still a Mammoth. 