Guild Wars 2

I find that I waste a lot of time selecting and changing the price that I want to sell items for by keyboard. If there were small +1 and -1 buttons next to each coin field, and the fields linked dynamically, it would make it simple to drop the price of the lowest seller by 1 copper and post your sale faster; especially if the fields are linked so that dropping a price like 2 silver, 0 copper automatically becomes 1 silver, 99 copper.

While i agree in the meantime if you hover your mouse over the actual price fields, and scroll your mouse it goes one up or down for each scroll