They have always had a few neat things listed, but boy, those prices are up there.
http://www.pinballdecals.com/TwilightZoneUltimateSlotMachinePage.html
Get the refund while you still can
We just had a poll on how most mods *didn't* retain their value...
https://pinside.com/pinball/forum/topic/what-are-game-mods-really-worth