My prediction is that having such an abundance of items that can so easily be distributed by anyone, in the way that selling items won't require going out of your way at all (having an ebay, paypal, the drive to want to watch all the auctions, meet people in chats, phone calls, and all other aspects that are required to transfer items or accounts and receive payment, ect.). You will simply just press "auction". This ease, I predict, will flood the "Diablo Market" with items, greatly devaluing them in the way that ebay devalued a "Spiderman 1st edition". A great innovation though. Hopefully I'm wrong and we'll all be rich with Diablo 3 1099's by this time next year!! See ya in the dungeons!!
Great Question Buddy,
//Future Professional Gold Farmer//