My bikes are all riders. I tend to lean away from the bike as art view. For me, the most beautiful thing about a bicycle is the ride. I don't have anything overly valuable or rare.
Having said that, my Colnago Super was a gift from my wife. It lives on our bedroom wall. She also gifted the mount it hangs from. She actively encourages this madness hobby. She's never once complained or discouraged me from buying another bike. I often have a bike in the living room during winter. I don't go overboard with it (piles covered with tarps/junk everywhere) and it has never been a point of contention. She's into pottery and I'm all for it. Her kiln came this week - super exciting stuff! We are definitely not typical, but we communicate fully. Always.