I am looking forward to building my new tower of stuffs! I was thinking it would be cool and much easier for the player (I don't know how hard it would be for the devs) if it would be possible to link Small Display Boxes (SDBs) to market prices much like the Auction House does when you create an auction. Would be cool to have two separate markets. Towers and Auction Houses, the Auction House being totally separate from SDBs but when you set you price for an SDB it would be cool to see an interface like this: Create Auction - Interface that is linked with player owned sdb prices maybe minus the posting fee since it is in your own tower and not the Auction House? Whatcha think?
*Edit 7/19: instead of two seperate markets what if the Auction House were to become the list market for Tower SDBs? I can imagine as towers start growing, people might have less and less use for the Auction House. It might be cool to keep both though as if something does not sell from your tower, you can always try the Auction House where there is a listing fee. :)