ArenaNet:Guild Wars 2 suggestions/buyback

Buyback/resell button (Discussion)
I know this one is pretty obvious but I have lost lots of money due to accidently selling or buying items. I think there should be a buy back and resell button on the merchant windows and the items would be gone after you close the window. For example, if you accidently click a few too many times and sell a black dye worth 8k you could buy it back for the price it was sold for. Another example is if you clicked the wrong thing to buy and wasted your money you could sell it back in a seperate location in the window for the amount you paid.


 * Why this is a good idea
 * A lot of players make mistakes of selling the wrong thing.
 * Some players click buy instead of cancel.


 * Why it may not work out
 * Players may use this to gain temporary inventory space.(Solution:put time limit of buy back, say 1 or 10 minutes)