The black population in Long Island is 8%. The black population in Greenville, SC is 24%. Three times as many. Nana thinks SC is some white man's paradise, but he'll be crossing paths with those people three times as often. It's the south, they're inescapable down there.
I'll honestly be very surprised if he ever leaves his vidya game/tweeting hidey-hole. I mean, why? Everything he needs and does can easily be confined to one room. Computer, TV, beer fridge, couch to pass out on, chair to toss his second shirts on...why does he need another garish McMansion full of rooms he'll never, ever use? Given how long the "construction" appears to be taking, it seems possible that Nana vastly overestimated how much he'd profit from selling Castle Wopington, and now finds himself strapped for cash. A customized McMansion, full of useless rooms, packed with garbage toys and furniture he'll never use...he doesn't have the money for that anymore.