Most new mobile homes may still look plain on the outside, but the interiors of the expensive ones can be very attractive, unique, and spacious. I'm not sure worth 1 million, but it's all relative. High-end motor homes (Winnebago-types) can go for $500,000+.
$1.05 million for a 1971 trailer on a leased lot? A person would have to be dumber than a bag of dirt to do that.
You can get a really nice double wide for 50-60K and I think that's still too much.