I'm not sure how much work this is to implement, but it would be great if you could log the data and show a history of past market depth as well.
This is possible but I think its important to know what the market depth shows. Is it just a very very weak indication of how the value looks like right now, since it easy for people with a lot of cash to manipulate I dont think the history is of any use.
I think that it is time to change the default height = at least $200000.
Changed to $500K.