Pre-Trade Item Trial
It would be cool if you could test the item you are looking forward to buy before actually buying it. (This idea would work perfectly with the Auction House). To avoid people actually using them to pvp, let the item testing be only done in Bleeding Island and just for a few minutes. This idea will not only improve the market, it would give arenas a reason to use them since people would not be able to test market items over there. Love to see the feedback!
Don’t see any reason for development effort into this. There are limited items and u can guess how they work. If you really want to be 100% sure, borrow one from a friend or Buy a fragile item first