I bought an HTC Droid Eris: EOL'd a year. Never saw a version update.
Then I bought a Samsung Droid Charge: EOL'd in a year. Will never see a 4.0 update.
Yes I've learned my lesson. I'm on Verizon so I can't get the Nexus. I'll be getting an iPhone 5.
https://developers.google.com/android/nexus/drivers#torojro0...
edit: I mistakenly linked to the binary drivers there and I seems you might need to build AOSP yourself if you want to use it straight from Google. I guess you're taking issue to the Verizon Galaxy Nexus being sold through Verizon instead of via Google's store. Verizon's full retail price is pretty ridiculous compared to Google's price but in terms of support the Verizon Galaxy Nexus seems to be getting just as much from Google as the other variants.
Basically, one just has to grab the drivers you mentioned above and pull the source using repo/git and compile using Linux (Debian/Debian forks are the easiest generally to do it with) or OSX.
I compiled the source the day after it came out for Android 4.1 for my Verizon Galaxy Nexus. Ran it all the way up until yesterday when I switched to Cyanogenmod 10.
I'm an admin (yarly) at Rootzwiki, so if anyone has questions on how to build the source or mod it, you can head over there and post questions in the development forum. There's usually a few of us that reply in our free time.