Please, give us an option to see (and buy) all the items registered in the market.
This is essential for trading as well as buying scenarios where people would only start buying items if there is sufficient affordable supply of these items, e.g.:
1) Mercenary Steel Boxes
2) Broken Ammo & Cannonballs
3) Various quest-related shards
4) Lucky coins
Even buying a lot of +0 gear to enchant it to make a +6 gear - all of these scenarios are broken now.