So I'm looking for a radar detector to replace my 8500. I can get a returned Valentine for $359, a Escort 9500ix for $449, or the Escort Redline for $449. What would be my best choice? I do mostly city driving but know 95% of the police hiding spots in my city and don't drive too fast. I will be doing alot more highway driving as I go off to college 200 miles away from home.