It is possible to make money collecting, but it’s very time sensitive and an active hustle. You pretty much only want to do it if also get joy from the collecting itself. Which is the thing.
Collectibles are a terrible financial investment. They can be an excellent personal life enriching investment. If you have a good healthy attitude towards it acknowledging it’ll probably yield low financial gain, and high positive emotional response… go nuts. Just don’t let it usurp your long term plans.
1: Except me. Anyone want to buy a really nice acoustic guitar that could use a more attentive home? I have a laughable number of them which I never play! I’m not in need for cash but it’d be nice to reclaim some space, and any proceeds would go to helping out my fam with much tighter budgets.