I said it before, and I said it again, it's cool! It CAN change the way we move from place to place! The reason people are opposed to it is because it's DIFFERENT from what we have got used to, and people are reserved when it comes to new and strange things.
As for the price... How much did cars cost when they were invented? I believe the word "astronomical" is the correct one here. Once mass-production of those things starts (and I hope it does start), the prices will drop accordingly. Over time, as the tech get more refined, the prices will drop again.
Don't just kill this idea, be open-minded! These things could do everything car does in downtowns. And do we REALLY need big cars to move inside cities? No we do not. We could eliminate the vast parking-spaces, we could make streets with fewer lanes (besides, several lanes don't seem to help one bit. Instead of 2-lane parking-lot, you get 4-lane parking-lot. They are packed with cars all the time), we could give PEOPLE more space, instead of giving CARS more space!