My other grandparents bought a new mobile in 1981 and put it into a park on owned land. It was a pretty nice mobile, bedroom and bath at each end with an open kitchen/living/dining. I have some nice memories of that place.
The park ended up starting to go downhill, so they decided it was time to sell. They ended up buying a few blocks in a nice subdivision and having new home built back in '95.
When I was a kid we rented a mobile home for a while between moving homes. I think late '80s era probably. It was pretty nice, had a nice sized kitchen, living room, dining room with vaulted ceilings, walk in closets, etc.
I'm REALLY liking these new park model mobiles I've seen for sale lately. 9 foot ceilings with trays in the living room and bedroom, tall transom windows, nice stainless side by side fridge, stove, dishwasher, recessed lighting. Textured walls, house style trim and doors, etc.
If they made those in a 2 bedroom option, I'd probably buy some land, have one installed and then build a barn for parking and hobbies.