Actually quite a few people put shorty antenna's on their cars on here...I would have one on mine, except when I went to take off my stock antenna, the bolt was rusted to the base of the antenna and decided to break off with it...o well. Im just gonna cement the shorty if I put it on.
I have the ARK shorty antenna and even though it's way overpriced, I like it more than any of the others I've seen for sale. I bought it because I got a great deal on the STB and Antenna combo...
ARK's is closer to $35 though. A lot of people who go to a short antenna say they have problems with reception...I honestly don't have any problems unless I go up north. I live in a northern suburb of the Twin Cities and if we go out of town (35-50 miles away from home, then I start having reception problems)...the radio towers are all within probably 20-25 miles of our house...in the Twin Cities or just south of the Twin Cities for the most part.
Here's a quick shot I took one day trying some things with my camera: