I thought about the same thing when I moved from my house into an apartment. I considered hanging the bikes from pulleys from the ceiling. Then, we just put the bikes where they'd fit, 2 in the hall, 1 in the living room, 1 in the bedroom, while we figured it out, and that's where they still are, 3 years later. Now I just think of them as pieces of art.
After all, they are the most beautiful things we own.
'02 Eddy Merckx Fuga, Selle An Atomica
'85 Eddy Merckx Professional, Selle An Atomica
'10 Soma Double Cross DC, Selle An Atomica
Slacker on wheels.