I'm very close to my 'upgrade' 2-year time, but it's unclear exactly what that means. I have been getting notices for the last six months that I am eligible for some partial credit, but the prices for new phones don't look particularly good. Is there a significant discount after the 2 year anniversary or is it just puffery? BTW, I do understand that an upgrade would extend my contract with Verizon for another 2 years.. but around here there aren't many decent alternatives.