IJ4 earns A LOT...and never seems to break...Ive seen a few dirty examples but I've never come across one that has a major fault.
SM earns a lot as its popular with pinball fans and kids too.
Shrek earns a lot depending on where you put one. In an arcade by the beach or at a themepark Shrek would earn the most a machine could ever earn, at a pub or a tattoo parlour not so much.