I've always used my iPad at home or at work where there is very fast wifi. This go around with the Pro I decided to get the LTE model and figured I can justify the extra $130. Instead of sitting in a dim break room at work I can go eat in the car and enjoy the nice summer weather, thats an hour every day. Once a month usually I'm in the car 2 hours round trip where I'm not the one driving. And every August we go on vacation 3 hours away so thats 6 hours in the car again. I'd say for those 3 reasons along is worth it to me.
Its better than what I did the last 2 vacations, Buy a $30 prepaid T-mobile SIM to put in my iPhone and tether which then means that no one can contact me if needed since my AT&T SIM wouldn't be in the phone. T-Mobile has the 200MB data promo each month and I can always pay $35 when I need to for 6GB of data with Binge On as well. If I don't need anything more than the free data I can just cancel until I need to use it.
Its better than what I did the last 2 vacations, Buy a $30 prepaid T-mobile SIM to put in my iPhone and tether which then means that no one can contact me if needed since my AT&T SIM wouldn't be in the phone. T-Mobile has the 200MB data promo each month and I can always pay $35 when I need to for 6GB of data with Binge On as well. If I don't need anything more than the free data I can just cancel until I need to use it.