Yeah. I actually traded a Blake Griffin RC card here when it was valued at $50 (this was just before the beginning of the 2010-11 season. A few weeks later, the trader messages me apologizing for the value increasing to $350. That's just the nature of the hobby though - nothing we as collector's can do about it.
Collect Patrick Ewing, Jalen Rose, Kevin Garnett, LaMarcus Aldridge, Jeff Green
if you have less than 25 trades, I will ask you to send first.