I use closer to a terrabyte a month, and I am well-aware that it is a plan issue. That doesn't change the fact that the only any-number-of-mobile-devices/plan pairing that allows me to do what I want where I want is a smartphone. That includes downloading content for offline-viewing with minimal hassle.
When my kids pay for their own phone service, maybe I'll go all-in on piracy instead, but in the mean-time, I'm exploiting that which I am already paying for, with a device I've had paid-off for years.