For what its worth they're probably worth picking up if you can get your hands on them. I bought 3 copies at my local CC. I kept one for myself and was going to trade the other two copies for other games I wanted.
But, I decided to just put the other two copies up on ebay to help defray the cost of my 10 game buying spree last weekend. I already sold one of them for $24.99 with "Buy it Now" which appears to be the going rate right now.
If it was me, I'd buy the 10 copies for $50 and whatever you can't sell off for $10 to fellow CAGers, you can easily make your dough back on ebay.