I guess most people on here count themselves as collectors to some degree and as such we're in a way all hoarders really. That said it's all relative, some people pretty much never sell anything. Others will sell when needs must - to fund a new project perhaps. The final group buy and sell regularly, they'll spend months hunting down that elusive frame or part only to sell it on a few weeks later when the novelty has worn off.
So, which are you ?
So, which are you ?