Been thinking more about this. Bear in mind the Gottlieb "Street Level" half dozen games back in the late eighties / early nineties. They were a return to no ramp games (ie everything at "street" level) and while most are fun, they were a big flop with players.
Not saying the market would react the same - Gottlieb were trying new themes, and here we're talking about old school themes - that's what makes it a better proposition.
I wonder if EM's are the way to go? Seems to me that the age group that first experienced all those nice flashy displays are about right to be cashed up to pay for a machine bought at the local Harvey Norman.