Absolutely. It is "cheap" when the median price of a home is $1.5M it is "expensive" when the median price of a home is $150K.

The point though is that it addresses the 'variation in pre-manufactured homes' question. There are people out there building pre-manufactured homes, that mix up the formula with high end amenities.

As I see it, there are two vectors on these things, their shapes, and what you can get inside of them. The traditional mobile home type home is limited to 'single' straight and long and 'double wide' and long. That accommodates and optimizes for the lot shapes that typical mobile home parks allocate for these homes.