i got a lot of friends, bought this game, played for 1 month, then never logged in, if i were u and  have this kind of friend, buy from them, i think rm 100 will do, plus now u can change your battle.net nickname, even though your integrity is so important that it would shatter if u gonna play a used account, i will still suggest u to get one account if u got some trustworthy friends who have no passion for starcraft 2