The space is the bigger issue for us. If we lived in a typical suburban house with a basement, yeah, it'd be easy to do two. I have a friend here who lives in a much bigger home -- he's wealthy; former oil co. CIO -- who has a "dual KICKR" setup for him and his wife that includes custom built (by him) cabinetry and air bladders underneath that can be pumped up or relaxed to provide more realistic on-bike motion. Each is paired to its own computer for Zwift with a dedicated display.

It's also very, very obvious that he is a wealthy former engineer. In a charming and nerdy way.