I'm not technically eligible for an upgrade until at least December, but to quote a Bill O'Reilly tirade, "**** it! We'll do it live!" I'm upgrading immediately upon availability, and I will pay the full cost if I have to, since I'm looking to really promote these to my users at work for the holiday season.
I love having so many choices between Nokia, Samsung, and HTC... So far it seems we're pretty much guaranteed to see 4.x" 720p screens, dual-core processors, and NFC (which admittedly doesn't impress me), so it's going to be entirely based on design likeability and camera quality for me as primary factors, and also whether I can trust the OEMs to release software fixes for the devices since Microsoft has already made it clear I'm guaranteed a means of getting OS updates moving forward.
History suggests Nokia and Samsung are favorable for device updates. HTC has burnt their bridge with me because of the Titan's issues and lack of updates. Even if I blamed AT&T for the update problem, I view it as the responsibility of OEMs to push the updates through to customers.