Here's a pretty good read on this.
Make all the judgments you want, but for me, what keeps me in NIB purchases is not as much the price of the pin overall, but the hit I'm willing to take whenever I decide to sell. Losing potentially ~1k or so after playing and enjoying the game for 2+ years, is acceptable to me. I consider this against other areas where discretionary funds could be spent like boats, autos, and RVs. Pinball is cheap and can be played all year and not just seasonal. However, things like shipping and taxes throws that off a bit, as those funds, generally, are not recouped on resale. So throwing another $700 plus $300 shipping on a new JJP game, already sets up a 1k loss out of the gates. I live in Missouri, which appears to have no Nexus law in place at this time, so I'm still in the same boat as before. However, once that changes, I'll have to rethink my own spending on NIB purchases.