**Add it up**
Kerry Irons said:

Have you done the math? How many bike parts to you need to buy in a year for a commuter bike? When I was commuting to work, I figured I easily saved $2K per year without even thinking about the health benefits. "makes it seem more expensive to bike" sounds like you haven't even run the numbers. There's NO WAY the cost of riding a bike should be anywhere close to driving.

I once did a financial comparison of the cost of commuting by car vs. the cost of commuting by bike. Figured in where the costs of fuel, maintenance, insurance, and amortization of the initial purchase price. Unfortunately, I no longer have all the numbers, but a few things popped out of the analysis:

The cost of fuel for a car is much less than the cost of fuel for cyclist, on a per mile basis. Even cheap food carbohydrates, like rice or potatos, cost far per calorie than gasoline, and even when you figure in the higher energy required to move a motor vehicle, the per mile costs were still lower for the automobile.

Maintenance costs for bicycles are higher on a per mile basis for bikes than for cars. For example, even if you pay $30 a pair for cheap bike tires and 5,000 miles out of them, that's still twice as expensive as paying $150 for a set of cheap car tires and getting 50,000 miles out of them.

When it is all added up, riding a bike is about half as expensive on a per mile basis than driving, if there is only one person per car. But if you car pool with two or more people in the car, driving is cheaper.

I haven't added up the numbers, but I suspect that using a motor scooter as personal transportation would be far cheaper than either a bicycle or a car.