I've been lurking for a couple of weeks and decided to join so thought I'd jump right in and say "Hello".
I've been "away" from using RD's for some time, but still have my Whistler-2 (WH-2) and 225. I just purchased a new xtr-330 and I already know what 90% of you are going to say, I wasted my money - and why not something better?
I've always like gadgets and gizmos that keep me informed of the world around me. I was heavily into CB's in the early to mid-70's (KDL-7345) when a CB license actually cost $4.00 and currently keep my GMRS license up-to-date. Scanners - from way back, I've always had at least one scanning the police/fire frequencies on a daily basis - wherever we lived at the time - and I still have a bunch of crystals around somewhere.
With over 36 years of driving experience, I've never had so much as a parking ticket. And yes, in my younger days the CB kept me clean during many of my "over-the-speed-limit" weekend hops between Camp Lejeune NC and my wife of 32 years here in MA, and the older RD's although more of a novelty, were like cheap locks - They keep honest people honest.
So, one would ask why, if I'm not a habitual speeder, why would I want an RD? Well, I'm sure there are many out there just like me who likes to be more aware, and not so much for the novelty, but for the practicality. The RD's today, even the inexpensive ones like my 330, are so much better than they used to be. Sure, when on the highway, I'll squeeze up maybe 5 over as many do, but there are times when if you don't "go with the flow" they'll literally run over you. It's times like those that I'd just like a little heads up and know if there may be a speed trap, and it just might be my time.
I'm guilty! I am one of those who stops completely at all red lights and stop signs, I always signal my intent, I have ALWAYS worn a seat belt (even my 64 Chevy Impala had them) and only exceed the PSL on the highway. But then there are those times when it seems like you are the only one on the road, it's 2:00 a.m. and before you realize it you are going 10 mph over - so the RD is there - just in case. And the idea of SWS, even though it's not widely available, seems like a pretty good idea, providing advisories and warnings.
Anyway, I thank all of those who are so very helpful. After so much reading I've learned that there is so much more than I ever imagined to learn about todays RD's!