Bungie cannot do player to player trades for shitty materials, in my opinion a auction house is better for trades. But to do trades there has to be a new set economy in destiny for this to work. Set glimmer amounts for rarity of gear, Commons 150 - 250 Uncommons 250 - 500 Rares 1000 - 2500 Legendary 10000 - 25000 Exotics 50,000 - 100000 More marketing, Barber, hairstyles new facial looks. Shaders for clothing and guns. Shiny looks, meaning make your character have a special effect around them. Example flames around your character. (2000 - 50,000 glimmer) Bigger Vault space for a price. Restocks, More frequently on vendors means more content. Bigger maximum glimmer in pocket, 500,000 glimmer or 1,000,000 glimmer. Idk it's my opinion, i seen alot mmos do this and kept non exploitable.