I have been playing this game on and off since launch, so I am familiar with the game itself. However, seeing as I do mostly solo questing and world exploring, and it can go months (sometimes even years) between every time I play, I am quite out of the loop when it comes to the value of items.
During my questing and farming, I will come across various purple, blue and yellow items. I know that random gear is usually not worth anything, but what about recipes? Runes? Items for improving gear in crafting? Styles and motifs?
I have no idea what any of these are worth, and so I am selling it for whatever the buyer in the chat is willing to offer. I have no idea if the offer is fine or if I am being undercut because they are aware they are dealing with a noob.
Are there any guidelines or any way I can know what various items are worth?