Its so rare... Maybe I'm too critical. I think American standards and regulations have ruined architecture, and most buildings are just soulless boxes. People don't notice because they just use their houses as a sleep box and aren't there while working, and their main reason for buying a property is its value retention over time. That's why all the designs I see are so boring. No innovation... Innovation is punished.
Frank Lloyd Wright was innovative, but its like someone put down a hand and said, "no more, not allowed!" Why hasn't the style iterated? IMO - fiat.