My wife and I have an iphone 3gs and are looking to move back to Verizon and get the Droid X. It seems like Best Buy and VZW are charging $200 with a new 2 year contract (i'm fine with 2 years) while sites like wirefly and even walmart are giving the phones away for free with a new contract. Whats the incentive for buying at Best Buy or VZW? I'm aware that walmart and wirefly have a seperate ETF charge in addition to VZW, but that doesn't bother me because I can keep it for 2 years. Is there something else I'm missing? It just seems to good to be true to save $400 on 2 phones.