Okay, first, the title of the thread is supposed to be catchy, but I only have one wife and I love her; I'm not giving her up.
I have four bikes that I ride - a tourer (LHT), a "fast bike" (Allez), a mountain bike (old Rockhopper), and a "shopping bike" (even older Stumpjumper with a Bob trailer attached.)
I can't think of another use as a rationale for buying a new bike, but I'd really like a carbon fiber bike, and I've always wanted a titanium bike.
Don't suggest a commuter, because I live across the street from my work, and riding a bike would be ridiculous. I don't need a rain bike; I live in central California. If I wanted to ride in the rain I'd be fine riding one of the bikes I have.
My wife thinks four bikes is ridiculous enough; getting another would be really ridiculous (she's got two!)
Doctor, what should I do?