I am in quite a dilemma and I need some guidance from members. I have a grandfathered "Unlimited Data" plan on my iPhone but I'm not yet enrolled into a shared family data plan yet as I am on FamilyTalk Nation 700 with Rollover. My daughter has an iPhone and is on a 300 MB plan. I have trained my daughter to use her data responsibly so she is 99% using Wi-Fi access only, which puts her data usage incredibly low (on an average of 50 MB per month). My son has been patiently waiting to get an iPhone and I plan to put him on 300 MB too and he will be trained to use Wi-Fi also. I have unlimited data plan and have not exceeded more than 400 MB on an average (recently checked with AT&T rep and went as far as 6 months back to track my usage). However, my bill is exceeding over $170 a month and recently I spoke to an AT&T rep who advised that if I switch to a family shared plan, then I would lower my bill by $60 a month if I go for 1GB shared data with unlimited talk and text. I am so confused because I don't know if leaving my unlimited data plan and going to 1GB should be the decision. Of course by speaking to AT&T rep, they are trained to get all "grandfathered plan" off their plate. Any guidance? Anyone in my similar situation has made a decision and felt it would a good decision or a bad decision? Any advice is welcome. Thank you all.