I used to ride a bike as my main transport. It really depends on your model. A Ninja 250 will be a lot cheaper than a car (especially when you count insurance),

I used to ride a bike as my main transport. It really depends on your model. A Ninja 250 will be a lot cheaper than a car (especially when you count insurance), a CBR 600 that gets put through its paces, not so much. But then, I wasn't keeping my bike in great tires/etc, and I wasn't commuting nearly as far as you.