Some of his Usonian houses were very practical, livable and affordable. Think low-slung California ranch with deep eaves. Most were slab with radiant heat. the u-shaped ones with the majority of the glass facing the courtyard were/are especially nice. Not all were, they were highly individual, some had flat or shed roofs as opposed to the more aesthetically pleasing shallow pitched or hip roof, some had inscrutable window placement, etcetera. But, all in all they’re well loved, mostly preserved and never were unaffordable.
The architect who designed our house was a sort of Wright devotee -- at a safe remove. He was the son of a contractor, so he didn't design anything that couldn't be built.