So I get the feeling that a lot of people's towers are going to start selling items. And I strongly suspect that prices will vary a bit from those at the auction house - people running a resource route might be willing to pay a little more for the convenience of an on-street sammich, for example. There ought to be some way of knowing the current average, lowest, and highest price for items being sold in towers, to encourage competitive pricing and to let glitches know where a special item might be obtained at the best price (and so I know how much I want to charge for my stuff).
Could this happen?