More than half of my pins have been in the "too good of a price to pass up" category, but weren't necessarily on my wanted list. However, I probably should have passed on some of them considering the time and money they ended up needing. The ones I was specifically looking for (and paid close to market price for in good condition): LOTR, TSPP, GB, and GnR. I was also specifically looking for RBION, but got it below market.
None of the poll selections really work for me, but to try to better answer the original question, I'm trying to flesh out my collection with games from each "era" (I even have a 1940 flipperless Short Stop, but it's a long way from ever (not?) "flipping" again). However, even with my new game room, I can only fit about half my current collection.