Well Verizon has another deal going on now. From what I've heard, anyone who bought a Droid this calendar year can actually upgrade any time after launch day to the Droid X. The only catch is that in order to pay the upgrade price, you have to sign up for another two years onto your contract. So Verizon will have you for about 4 years probably. I don't know if they will offer a 1 year contract price or something.
Not sure how legit this is, but I found it on the internet, so it must be true. Can't find a link right now but if I do I'll post it.