If the prized gem is still in print, the cost of a new one, shipped.
I periodically scan eBay for a copy of Quirks. I also can tell that Hotel Life is desirable. I might give up something I own (I own nothing of gem quality - except maybe a full 2nd edition Talisman) for one of them.
Last edited Wed Jul 9, 2008 4:27 pm (Total Number of Edits: 1)
I will assume that your question implies that I will never be able to reacquire the game (as losing my chess set or even all of my chess sets is not terribly worrisome otherwise). Assuming I would NEVER be able to play the game again, I would probably do it for about $1,000 and play Shogi or Xianqi.