Specifically, the BSD that I own. It’s the best playing original one that I’ve ever encountered. It just has everything in my opinion. Shorter ball times, great art, sound, animations, and call outs. For me personally, it’s a lot better than certain games costing twice as much, that people seem to like for non pinball reasons.
“Flip” in the sense of resell, I’d say Torpedo Alley. I had two of them so yeah, I still have the other. It’s my favorite 80’s pin. Taxi is up there as well though, I just played it so much and got tired of it.