Cell phone service

We have att. Have two iPhone 4S's. Just went out of contract in December. Switched to their share plan and have unlimited minutes, text and we share 8GB of data for $150/month. Probably would be cheaper if we had their home service as a bundle, but we ditched that for phone through cable tv service at a much lower price than att could offer us. I use the data on my phone a good bit, but have only been using a few gig per month between the two of us. I am thinking of dropping it down to 6GB to save a few bucks, but my wife reminded me that once camping season picks back up that we might use more data. So I will leave it the way it is for a while and see how much we use. Never had a problem with our service. We had verizon before and got tired of their "holier than thou" feeling. Plus when we were ready to upgrade att had a better plan for us.