$100 bucks! What radar detector is that cheap that is decent? The top 2 detectors right now are Escort Passport 8500 and Valentine One if your serious and want a detector that will be really accurate go for these. I have the Passport 8500 myself and installed this week. So far its not bad. Picked up some nice alerts where the cop was down the street about a 1/4 mile in city. Just remember having a radar detector doesn't mean you can speed. Just use it as a tool to help you know what's going on around you if being observate isn't your strong point and your trying concentrate on driving in traffic.