Quoted from sethbenjamin:I just assumed the sinking building version goes for some ungodly sum, but I haven't looked into it. Trying to convince my friend and pinball co-investor that Earthshaker is a better game than Whirlwind (though I do think Whirlwind is very good).
I have both, and although I love Earthshaker, Whirlwind is a far superior game. I may be putting my ES up for sale in Mass. soon. I'm kind of on the fence about it. It would be tough to let it go.