I've been reading up on this story today and it's now a lot easier to understand.
First, Brad looks awful, he's 87, and he has several serious medical conditions which guarantee he isn't going to be around very much longer. It's not genius to suggest they should have left LV and the casinos much earlier.
Next, Jean is preparing for his passing. When he goes the majority of their retirement income goes with him. Being with family ensures a comfortable remainder of whatever time she has left.
Finally....the kids aren't stupid. Having the grandparents around means automatic babysitters. Especially when said grandparents are nearly immobile.
Like I said, they've had a good run. Now, it's out with the old/in with the new!
Also---I know nothing about NSUD because I've never bothered with it. But it's a -EV game, just like everything else country-wide at CET properties. I've been to Cherokee at least 8 times, because my wife's parents live in Asheville. I never found anything decent to play there, especially not enough to pour thousands of dollars thru. My expectation is that with their airfare reimbursements and all those comps and freeplay, they did the same as any other 7-Stars player in the sucker CET system does: they've been losing their asses for years.