I would have to say that sales/production numbers would best answer this question.
Anyone dare to guess how many pinball's were built by Bally alone between 1978 - 1982? Hint, more than any other era.....
Quoted from Sticky:I'd have to agree with right now but I think we have yet to hit the peak. Technology is bringing some awesome improvements with it.
The guys who go for nostalgia will likely point to the early 80's Bally's titles.