Read what you actually own
Owning a token does not automatically transfer copyright in an image. The rights attached to a project depend on its terms, and the artwork or other files may be stored elsewhere.
A sale is not a standing valuation
A high sale price records one transaction. It does not guarantee another buyer will offer the same amount. Thin markets make it difficult to know the price at which an owner could actually sell.
Utility needs maintenance
Membership, tickets and game items depend on someone continuing to operate the associated service. A token may remain on a blockchain even after the service stops.
My takeaway
I would separate enjoying a collectible from expecting a financial return. Scarcity on its own does not create demand.
Further reading
Personal view only. Not investment advice. I may hold assets discussed, and my views or holdings may change. This is not a recommendation or a complete investment assessment.