Murph
You aren't alone--I spoke with 2 (JD) dealers when I purchased my tractor and neither of them mentioned the kit. Then last month when I was working with the owner of the JD dealer on some rebates they owed me, I mentioned the fact that this kit should be brought up with every sale. Not every person will use it, but my guess is most people would spend the extra $75-$90 when plunking down $15-$20K for a tractor.
The owner said his salesperson (I bought from the sales manager) wasn't aware that this kit existed. I know what line of work you are in. My guess is that if you're installing a new system, you and your intallers are going to be up to speed on the new features. I know when a new insurance product is rolled out, I go to seminars to learn about how (or if) this product would help my clients.
I can see I'm getting off topic hear--this is just another small lesson in how important the dealer is.
Bob