I don't want my bikes in the main part of the house to look at like art work, it just looks weird with the home's decor. Maybe if the bike was a mint condition late 60's to early 70's classic museum piece like a Colnago or Bianchi, or Cinelli or some such bike hanging on a wall...but I think I would still run into opposition from my wife!
I knew a guy in Bakersfield Ca that had bikes all over the house, his wife got so fed up with his obsession he divorced him!
Instead I decorate the basement with my bikes.