phone w/ older verizon model...? I hate the phone I got w/ verizon contract (krzr k1m). How much $ to activate old fav verizon phone (motorola T720)? Its at least 3 years old, inactive about 2 years. I'd like to sell the krzr k1m while it's still work something and use the old one that I really liked while I shop around. Anyone done this?