My Valentine One detector that I've had for about 20 years has recently started to malfunction in that it's giving me almost constant warnings on the interstate. I've decided that 20 years is probably enough service and I should go ahead and get a new one. The question is do I replace it with a new Valentine that I can get for $289 plus shipping with their upgrade program (a $110 discount)? Or go for another brand? I've been reading reviews that say the Escort beats the Valentine on false alarms, but out on the open highway, the Valentine has a longer detection range. I know there are better systems that cost over $2k, but that's beyond my interest or need. What do you think?