I have a contract with T-Mobile for my own phone (only because I keep renewing an old contract that's cheap), but my 13 year old son uses a Tracfone. I got him one of their nicer ones for Christmas (it's his second Tracfone), and the phone came with double minutes for life. Additionally, I always go to DontPayFull.com and get a coupon code before adding minutes - they always have specials for free minutes available. Usually I'll buy 30 min. (which is doubled b/c of the phone special) and get a coupon code good for 30-60 minutes free. I usually end up paying 19.99 for all of that. He has 90 days to use them, text and talk. It's cheaper than getting a plan for him, as you know how much teenagers like to text.