Personally I like the Market Wards and I don't think that we need an AH in the game for a few reasons:

-It gives you all the info you need before you enter the wards.

-I don't mind the extra minute or two it takes me to warp to a ward to find something, better than standing in front of a AH like a zombie.

-In FFXI you could only have like 7 things up at a time on the AH, with the Market Ward you can have 10 up at a time multiplied by however many retainers you have and all the retainers can be up at the same time. At the moment that means I can sell 20 (30 if you count the fact I can sell 10 things on my character as well and it doesn't show up in my inventory space if I have it in bazzar.) things at once time versus only selling 7 things on a AH like FFXI had. Which means I save time not having to go back to the AH constantly to see if things sold and put up more things if they have sold.

Also it saves space on my character because I can keep all things on my retainer, go back and check now and then and just pop it into my bazaar if I have the space while I'm standing there versus

1) Either taking up inventory space on my character by keeping things I need sold on me
or
2) Going to check AH, seeing I have stuff sold and can put more up, running to Retainer, grabbing items off retainers, running back to AH and putting it up. Which is a lot more time than just looking up the item I need and warping to the ward and buying it.

Anyway with the changes they have made to the Wards, it's pretty much an AH anyway. A few more changes and it will be pretty much perfect.