I hate Escort for lting to us about "upgradability". However, I have to say that it has been 5 years and 3 months since my original 8500 has gone on my dash in my car in Florida sun. The detector never comes out and still works! I hope it keeps working until someone steps up and offers a product that offers strong pewrformance and addresses the defficiencies of the current Bel, Escort and V-1 products (Why no real remote display for the Escort, why no automute on the V-1?). Once someone can do this at a reasonable price, they will clean up against these current products.