Like someone stated before, the current system already is a half broken AH.

The price history wasnt a great invention and can be left out in an AH as well but this will not make the market any better nor will it prevent RMT. Its even better for RMT if there is no history since they can just buy stuff and sell for more, and theres no history at all. No ways to track them. A lot of RMT ive seen on shard buy and sells. The market is already pretty much rmt controlled. (and if thats no rmt, then players can cause the same problems as RMTs do)
They are doin it already. The current system is heaven for a professional RMT company imo.

The marktet wards are causeing trouble a lot, they drain too many resources, are not stable and they dont add immersion at all since you are teleported to a dark place with many npcs and click on them... what an immersion...
They are limited so even if you wanna put the retainer into the right ward there might be no room left... awesome system. and this is already happening in a game with only few players.

If we keep the MW SE better fails more and more so we dont get more ppl on the servers since then it will be a desaster

The MW is an AH without a history and its very easy to manipulate prizes. You cant even see WHO controls the market.
RMT friendly +3
Gamer friendly -3
(ok that is the case with most of the current game mechanics)

SE should start thinking about how the game can be mad more fun rather then how to prevent rmt without spending much cash on it (this will never work that way).

Sometimes i think most ppl whining about an AH are ppl who love the current MW system since they can manipulate like hell there... i dont see other reasons... and immersion is a lame excuse...