Sometimes I consider a market order. The available bids that cover my proposed order are not always available in the bid/ask list. I think it would be useful to have some vertical lines at the B/A graph to indicate the approximate value of at a given point. What I mean is that a wall of 25 has a definite horizontal length. If there were vertical lines spaced at say 50 or something like that, I'd be able to guess approximately how many coins are up for bid at a given price on the cursor/graph position. Any questions? I'd be glad to donate .25BTC for this feature.
The Second will be a bit later, because the currently way save them in the cookie, this feature will bring 15 extra parameters. I have to move them to server side to decrease the cookie size.