I never thought about it, but I guess collecting bikes based on their country of origin could be a theme. I've got a Japanese, an Austrian, and a Chinese. I guess I should consider shopping for an American, an Italian, A German, and a British bike to balance out the garage.
I'd probably need to start shopping for a new wife too...because the one I have would probably leave me! Hmmm...I wonder which bike would be the tipping point?!!