the "speculator" money will move to something else in due time... once they have sucked this market dry, they'll move in to something else... and prices will then normalize...
ask anyone who was a stamp/coin collector in the 70's... speculators destroyed the marketplace, and collectors are the ones who took it on the chin... the pin market shows many of the same signs that the stamp/coin market did back then... incredible obsession with minute details, and those obsessions driving the prices well past any logical breakpoint...
then the speculators left, and that stamp that started with a value of 2 dollars and went to 100 dollars dropped to a value of 1 dollar... and guess who got screwed?
honestly, it's pretty obvious that not everyone buying/selling is in it "for the love of pinball"... you can see this by this "false market value" that has been created by some very "interesting" sales techniques... there are many who are doing it simply to make as much profit as they can, and when they've bled this particular market dry, they'll move on to something else...