IIRC the cost of a stick built home is only ~15% higher than an equivalent manufactured home, but by building on site you have more flexibility for custom layou

IIRC the cost of a stick built home is only ~15% higher than an equivalent manufactured home, but by building on site you have more flexibility for custom layouts and other choices which fit the local environment better. A modern home builder typically has a set of plans to mix and match and their build process is really dialed in -- eeking out a bit more efficiency by doing it in a factory is offset by the cost of getting the completed product on site. Plus a good chunk of the cost in a home is site prep anyway. Also, at least in my area, the trend seems to be towards smaller lots and two story homes. There might be modular homes that could fit that niche, but currently manufactured homes are just big single story rectangles.