any Frank Lloyd Wright house is going to bring a premium
ONLY to someone that cares. When I was in college, I spent quite a bit of time reading up on the guy and studying his efforts. Guy designed some things that were 'neat'. Not at all practical, but 'neat'. Fallingwater is an example of something that remains 'neat'. TOTALLY not practical for 99.999% of the real world, but neat. Town I live in has some homes that were designed by Alden Dow, who studied under Wright back in '33. His homes also are 'neat', but not something that I would ever chose to own. There is a certain snob appeal to the 'artsy' type folks with these places. For the same money, you could certainly create something that was WAY more functional and served a legit purpose.