Well, LEGO Architecture has changed a lot through all those years...
I personally prefer the more "architectural" sets, such as Fallingwater, Guggenheim Museum (2nd version), Robbie House, Farnsworth House, Villa Savoy, etc. But I understand that worldwide known monuments have a larger audience. Maybe I would like to see a division of the Architecture series into 2 different themes, the one with monuments and cities skylines, and the second with famous architect's work. I would also love to see Gaudi's buildings (very difficult!).