I tend to think of collectors as a little better than consoomers but think they have more similarities than they may like to admit.
-Collectors aren't necessarily rich, and plenty collect as an "investment" that may or may not exist. Unless you want to draw a line that it becomes consooming once the person is in debt, even if they are buying fine art or whatever
-Collectors don't necessarily take good care of their things. This can be as simple as living in the wrong climate or not storing things properly, but things tend to degrade in people's homes because they're not experts on preserving things and/or don't want to bother. Sun damage is an example.
-Plenty of collectors collect for the perceived status or community
-A lot of collectors will look to compete sets, even if they don't like the whole set, just to have it. How is this different from pointless consooming? The set doesn't necessarily have an increased value, they're buying something they don't really want just because
-I'm sure most consoomers actually like some or most of the stuff they buy. Plenty of people watch the Marvel movies and like them. If you even vaguely like any media from the past 50 years, there are probably 500 funko pops you could buy and claim you enjoy.
-Not all collectors restore stuff or create anything related to their hobby, but that seems like a pretty good dividing line.