Gadgets on a car that I would pay extra to have

There are several car commercials on TV that show people dancing in the front seat of their cars. Is that a good reason to buy a brand-new $50,000 car?

The commercials don't say anything about the car's reliability, safety features or gas mileage. Come to think of it, the commercials don't say anything about the car at all. It's as if they're not selling you a car, but a stereo that you can drive.

M…