I currently have myself, dh and two young adult sons on my cell phone plan. The two sons are data hogs. Our cell phone bill is very high. We divide up the regular bill and they pay if they have overages. Oh and we are on at&t and I have an old grandfathered unlimited data. Dh had to upgrade and was forced in to the next plan. I had them review out bill and it would drop dramatically if I went into the new family unlimited data plan. I love saving money but am hesitating. One, the primary people who will benefit are my sons and they could leave my plan at any time. I hate to give up my old unlimited data plan. This will tie my unlimited data to my dtv subscription. Also my old plan is protected and can't be dropped. Any info or advice here?