I think the problem is how one defines "collector." To me, a collector is somebody who aquires a number of some item due to an interest in the subject and the intention to keep them for posterity. However, many of the so-called collectors I've know who ammased huge stockpiles of toys based on their resale value actually had very little appreciation for the toys themselves. While they called themselves "collectors" the toys were actually more like merchandise to them. At that point, it's not so much a collection as it is inventory.
At least, that's the way I see it.
I have a misb collection.
I dont' see it as profit but as my collection.