It costs 340 dollars (tax included) for a new LG optimus 2x. (Prepaid).

A guy on kijiji is selling it for 200 dollars, used, good condition.

I don't know if I should take a risk buying it from this guy, but I can see it in person.

What would you do? Get the used cheaper one, with the risk of it being faulty?(After all, its used) or pay 140 more for a new one? Thanks.