Hockey collectors don't have the crazy people basketball collectors do. There are a couple players that sell well above what you'd expect them to (like the Linden style guys) but there isn't a region (like the Asian basketball collectors market) where you can expect people to raise the prices to unreasonable status.
Crosby's cup rookie jumped about $7,000 in a year, but I think much of that was thanks in part to the popularity rise in the Cup, not Crosby in general considering his YG topped out at around 350% what it was selling for before.
