Is it a good idea to buy the Samsung Galaxy S II I9100 outright from Sprint?
In my opinion, it's a good idea to buy the phone outright instead of getting it with a contract. You will have the option to leave Sprint anytime you feel that you are no longer satisfied with their service. If you want to save cash, getting the phone with a contract is the way to go. But if you have the money now to buy it outright, I would suggest that you do so.