My husband and I were having a conversation today about unlimited data (we were grandfathered in) with AT&T. Our current usage is 3.6GB for him and 4.4GB for me with 3 days left in the cycle. I have a long commute and often listen to YouTube videos (with the screen off) on the way to class. He says I need to stop and this is why: According to him, using "a lot" of data (which, to him, is 5GB) will affect early upgrade eligibility. He says using as much data as I do will cause us to not be able to upgrade early at one year. I rarely hit 5 gigs a month, but I'm curious about how true this is. I know they're supposed to cap LTE speed at 5GB (or something like that). So is this true? Will using too much of my unlimited data plan affect my upgrades?