So I’m buying a new bike today but I’m a little problem pulling the trigger.
Help me with this decision!
Bikes I have already are;
Bianchi Eros geared and in great shape (my pride and joy)
Miyata 210 geared and in good shape (my everyday commuter to work)
Bianchi timber wolf MTB (currently stripping down and redoing)
Roadmaster Mt Furry (it was free and new and I use it for my commuter bike in the snow)

I want to get a fixed gear for many reasons should I buy a fixed gear or buy a nicer commuter and strip the Miyata and convert it to a fixed gear.
I’ve narrowed my choices down to either the Bianchi Pista or the Bianchi Castro Valley.
Obviously if I choose the Castro I’m stripping the Miyata, the only problem with this is; should I strip a perfectly good bike down to a fixed? I asked the guys at the local bike shop and they said they can’t stand seeing people stripping perfectly good vintage bikes for a fixed (that didn’t help me decide obviously.)

Thanks for the advise!