@blomman
good question...hmm....from my point of view a collector is somebody who buys watches and store them, without wearing any of them, to keep them in a perfect condition.
At a certain time in the future he might sell some, in order to buy other timepieces. Probably he could make a profit with some of the deals.
As I see myself, I got over the years a few different brands, which are also different characters of timepieces and I wear them all - each to its purpose.
This means my watches, especially the gold ones, have lots of tiny scratches, which makes them - out of a collectors view worthless.
Thus I dont see myself as a collector and I never had sold one of my watches.
Regards, bob