My bike cost $319.99. Free tune-up and a year of "tweaking." Fenders and rear rack = cheap, install was free. I've ridden it more than 500 km/h in two months. The cost to ride it these past two months = $0. I have no fancy "gear." I wear whatever clothes I already own. I did buy a cute cycling outfit with a skirt merely to deal with cycling in hot weather, wearing jeans on a 60 k/m ride = ouch. I bought panniers, a bell, a bike computer, lights for around $110 which I got when I sold a speedlight (flash for a camera) I didn't need that I got for free in the first place.

I may have to replace my rear brake pads at some point in the future, how much do those run? $7? At my LBS if I buy the pads there, they install for free. How much do car brake pads cost?

This thread annoys the crap out of me. Riding a bike is a gazillion times cheaper than riding the bus or driving a car.