Except it's easier to move a known dead body in public than it is to sneak a live body out of prison in secret.
And remember the stuff about his hyoid bone? The coroner said that the bone was broken in a manner typical to strangulation, and then Bill Barr and others came down on that basically saying "no it wasn't" and then the coroner shut up. If the coroner was in on it, he would have given a more conspiratorially correct autopsy report; and add to that that he spent plenty of time with that body and would have known it wasn't Epstein. He wouldn't have mentioned the hyoid bone if he was covering for a substitute body.
Way I heard it (back in Trump I) was that, yes, his primary motivation was to indulge himself, but he was quite happy to make more bank and influence when Mossad came to him. Who doesn't like to profit off their hobby?
And just like the CIA, Mossad doesn't mind at all delving into the nastiest stuff if they can use it against powerful people and profit.
For what that's worth. This came from following NATSEC types on Twitter the first time around.
Because those countries don't have football and Hooters.