My friend is an arcade technician at a pretty good arcade.
Racing games, Dance Dance Revolution, etc.??? Sometimes $60 a day. Mortal Kombat 2? $10 a week.
I prefer the arcade machine over the home version, as long as the arcade was where that game started. Like, the other day at a used game store, I played the arcade cabinet of Marvel VS Capcom(the original). I liked that better than the home versions, even though the DC, for example came damn damn close, and you could get right next to perfection with MAME on a PC, etc.
True though, arcades have to continue becoming inovative.