I have radar/laser detectors for whatever good they can do for me, not because I consider them completely effective. To me they are like insurance. Would it be wise to drive uninsured because your damage might not meet the deductible or because the insurance payment for your totaled vehicle is much less than you have in it? If so, I have been wasting money on auto insurance for the past 32 years due to the fact that I have had no accidents during that time. Nor have I been ticketed--even when stopped once with my detector visible had the officer chosen to shine his light on my windshield. And, I know of at least one officer of the law that had a detector stolen from his private vehicle. That sounds like an endorsement to me.