Law of supply and demand.

Currently there is a plenty of interest with a lot of desirable machines staying with collectors for a longer time.

Many baby boomers are retiring with lots of cash to splurge on their childhood love of pinball.

     

Yeah, well, l have 40 late 70s and early 90 pinball stacked up doing nothing, got no time to work on then at the moment, but they seam to be asking a fair bit for the late s70s pins.