Gentlemen,
I love questions like this. You'll see different versions of this type of question pop up once in awhile and I'm always amazed that they get asked. Since it's been a while since I went on this rant, I am overdue...
usnasa, how about if you program in the frequencies yourself and make your own determination if it's "worth programing them into the scanner?" I can't tell you, and I don't think anyone really, truely can tell you what's worth programming into a scanner. There is a thread going on a board somewhere else about what frequency WaWa uses at it's filling stations. Me? I could careless. But there is somebody out there who does and somebody else out there who knew the answer and provided it. Needless to say, some hack popped up on the thread and asked why anybody would care to monitor WaWa's channels. Hell, why would anybody want to listen to NYPD's SOD? Everybody has there own tastes and interests (mine are focused on exotic women from Pacific Rim countries, but I digress...).
NASA, how about this? Find some empty channels in your scanner, program in the frequencies to the trunked system in question, and listen in for a day or two (if it's a weekend, the use level on most business systems tends to slow, so you may have to give it an extra day or so). After YOU hear what there is to hear, then YOU can make a determination if it's worth keeping the system programmed into YOUR scanner or if you end up clearing out the channels and dumping in something else. Going on somebody else's advice could result in one of two bad things happening:
(a) Some one says don't bother. You end up missing out finding something worthwhile to you (say, the one talkgroup on that system that a federal agency uses under contract with the system owner), or
(b) Some one else says don't bother and you end up missing out on the opportunity of learning how, in this specific case, to program in 900 MHz trunked systems into your scanner.
This hobby is all about learning. And the best learning is from direct experience.
SCANdal