Ok i am looking to get a radar detector. I am trying to decide in which unit to purchase. I can get a new Bel V995 for $163 or a RX65 for about $215. I could also get a Escort 8500 x50 for about $230. Which of these should i get. I want a detector that is going to work good. Is there really that big of difference in performance to go any bigger. Also if so should i just save up for a Sti Driver or V1? Thanks.