Aside from the economy in general, I think a big part of the problem is all of the money going towards high priced NIB (or even vaporware NIB) games. The pinball hobby has always had it's own micro-economy going, where funds paid from one collector to another were in turn getting paid to another collector for a different machine and so on and so on... Now we have this absolutely massive amount of collector money exiting the pool. The new manufacturers aren't buying pins off of collectors, so our collective buying power is diminished. I still don't expect values to tank exactly, but things have certainly slowed down.