I keep hearing about folks who get a $100 discount from Verizon when they upgrade from 3G to 4G, which interested me because I'm upgrading from my DroidX to SGS3. I just called my local store and the rep I talked to knew nothing about such a discount.
Is it a regional thing, a random thing, or a "loyal customer" thing? I've been with Verizon for only a few years.
Also: yes, I know that the VZ store reps are not the best sources of information about VZW.