Quoted from busa32927:
Any place that I have checked on Stern Pro version of KISS that have a used one in stock are selling them at 8k.
This is very common with out of production games when they get near the end of the stock at a distributor. It has nothing to do with the actual value of the game, it is simply supply and demand at that point. The supply is low, and it really isn't costing the distributor much to have the game in a warehouse. So they turn up the profit. Then when someone who really wants a NIB experience with the game comes along... profit. It is also why you see NIB games seem to appear from nowhere right before a vault edition releases. Because distributors know the plan and want to clear it out before the next version comes out.
Distributors also did this before "Vault Editions" existed. Back then they were just called "runs". So a game like Tron had a run and finished. Then the "1.5" run. Distributors that had some left raised prices, then right before run 2, poof, a bunch of NIB sold and then run 2 happened. Rinse, lather, repeat for run 3 and run 4. The only time you could get a normal price was during production.
As for KISS being Vaulted... I don't think there is enough pent up demand to justify it. The game has its fans, but they are probably already happy. It's all about how many people would be willing to plunk down $5600 to own one. OF COURSE... I've been wrong about this before. I said the same thing about Iron Man, and then that showed up. Hell, I even own one of them. Time will tell.