Mike,
I know how you feel! I've been trying to get my father to move from Detroit down here to Georgia. We have plenty of room in our house, it's just Alexis and I here in this big house. He could have a room at the other end of the house, with a private stairway leading down to the kitchen and laundry room.
He's in his early 70's and owns his home, but it's not located in the best part of town, and plus there is all that nasty white stuff that he has to deal with all winter.
He and my wife get along fantastically, and she likes the idea also. I guess, like yours, he's just set in his ways and doesn't see a need for the big upheaval.
Heck, I even promised him all the hi-speed internet he could handle. That seems to be his favorite pastime.
Hmmmm, perhaps if I offered to let him drive the P-car....
Randy