I'm finally ready to give up my unlimited data and ditch Verizon. My girlfriend currently has AT&T so I want to just combine her line and get us on a shared plan. My question is, since I won't have the monthly savings advantage of a prepaid what is the cheapest way to set that up? Should I just sign a contract get a phone from AT&T and then sell it to pay for the N5? Since she's on contact and we go shared I'll be stuck for 2 years anyway. Thanks in advance!