Dude probably has unlimited data on Verizon and wanted to lock that in for another two years. He could continue paying month to month, but he'll have no protection if Verizon starts kicking people out of contract off of unlimited.That is not how it works anymore. You don't need to buy a phone to extend your contract, you just continue paying your bill. If you want to "extend" your contract then you do installment plans.
you're trying to scam someone.
good luck with that because you'll get less than retail. no one will pay what you paid when they can just look up online when the stores will have what model they want, and it'll be unopened and brand new to them, you already opened it. so it lost value.
No scam here.