glass vin etching

Any opinions or experiences with chemical etching of the auto window glass for theft deterrence and insurance discounts? I see DIY kits for about $20, and they seem simple enough. Don't know how well they really serve as a theft deterrent, since I'd think it could just as easily be re-etched to blot out the numbers, but I'm more interested in doing it for the small discount in insurance. Wondering if all kits are basically the same, or if there's any real differences, as the sellers would have you believe.

The company i use to work for...Made a killing doing this...Just remember to say that every step of security helps...! It is usually cheap to do...And might be a good add-on to a big job...Meaning if the customer really wants security...And you almost have them sold on a really nice 2-way...You could use it as a deal breaker..."heck, i'll throw in the window etch for free"... Just a thought...Ive only seen this done at new car dealers...Butr just about everyone who purchased the alarm...would purchase the window etch...Yes...im sure its not to hard to get rid of the evidence...but again ...every step helps...! Also see if the company has some true stories/testimoinals from other customers...And include these in some reading material in your wait-room...Might get the impulse buyers...! Heck...HHgregg is selling mattresses...and Best Buy is doing detailing...Window etch cant hurt...! And with combination of a insurance discount...Should help the sell...(include that in the reading material...)M.E.C.P & First-Class

Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

Sounds good, I'll give it a whirl and see how it turns out.