[nhooey]

One of the advantages a Segway has over a bike is that you don't sweat when you ride it.

You can only ride your bike to work if you don't care if you're sweaty, or if you have a shower and the time to use it once you get there.

And one major problem I see with not having cars is being able to go somewhere outside of the city on a weekend, when all the ZipCars are taken. If you reduce the amount of cars a city needs on average, everyone is seriously screwed during peak time. Maybe a graduated pricing scheme would fix this: With all of the cars being more expensive on the weekend, you could have a special set of reserve cars which are even more expensive on the weekend so people who really need them and are willing to pay can depend on that reserve.

However the advantages gained from people sharing cars instead of everyone having their own, far outweigh the costs.