I have Sprint and I have been told by many people that I should NEVER give up my plan. I don't know what it is(was) called, but it has been extinct for several years. We have a pool of 1500 shared anytime minutes (which is any time between 7a-7p, M-F when calling a landline), unlimited text and unlimited data. We pay $130/month for the first 2 lines and then $20/month for any additional lines, up to a total of 5. DH and I have iPhones which are subject to an additional $10/month each "premium" data charge. This was from back in the day where 4G was only accessible with certain phones and if your phone could access it, you paid the fee. Unfortunately, for the past 4 years, we have been paying this fee and still have no reliable 4G service in our area

. (We live in the metro Grand Rapids area so we're not exactly out in the sticks!) Heck, my DH still has a 4S so he can't even get 4G if he wanted, but the surcharge has been added to all smartphones on the plan. Each of our kids has a Galaxy Tab 3 that they were giving away with a 2 year service agreement. At the time, we were able to get 2G of data for $15/month on each tablet.
So, we have 2 iPhones (I just upgraded to a 6 last week), 1 "dumb" phone (we use it as our home phone) and 2 tablets with 2GB data each on our plan. We pay about $200/month. I use my phone a LOT at work. I'm a paramedic and in the ambulance for most of my shift. I stream Pandora radio, Netflix and watch my ABC shows when I am not busy. I probably use about 8-10GB of data per month by myself, and that does not include the times I tether my laptop to the phone. If/When Sprint's 4G LTE ever improves around here, I will be a very happy camper.