[a] being well taken care of while the one was alive; and,
[b] the prospects for being set up for life with a portion of the old man's wealth after he was dead.
Nothing illegal about that -- as long as fraud was not involved.
So far (and admittedly I haven't bulldogged this case like Greta on Natalee Holloway), I haven't seen any evidence of fraud, which is why I'm still in Anna Nicole's corner as regards her marriage.
She's pretty skanky now, yeah.
But you gotta admit, back in the day, she was HAWTT.