[codingdave]

Watch out for sites that are being sold because they are on the decline. Many people will keep a project while it is profitable, then sell it once an external change has trashed its value prop. But they try to price it based on its peak, so you are over-paying for a dying project.

That doesn't mean you could not buy it and pivot it to a model that does work, but be exceedingly wary of the pricing.