I have always wanted to list items and let the market determine the price which is the way I believe the AH should work. With how insanely high stuff is I dont know if thats the normal prices or just asshats being asshats. A lot of stuff I sell I have no idea what its worth due to said asshats pricing similar stuff for millions and millions of gold. So I priced my stuff close to them and it never sells. But when I do get sales on decent items I wonder if maybe I sold it for too little and those people asking millions of gold were asking the market price after all.
Id love to be able to just post something for 5k with no buyout and let the market drive my price up depending on whether or not people want that item. But I think having to wait 36 hours prevents this from happening as no one wants to wait over a day for a piece of gear when someone else is selling one similar they can just get right then and there. I think if you choose not to have a buyout you should be able to set the time limit on it. 6/12/24 hours. More people would be willing to start bidding wars on items if they know they can have it in 6 hours. I just think that would make the AH better.
Oh and while they are at it make a damn search option for buyout times. I really hate looking through 47 pages of auctions just to find the one with under an hour left.