I think many are somewhat reserved about using their plans 'AS' unlimited, and even if they do have this, many rarely use that much data or bandwidth, but they pay for the excess never used.
I think it a bit extreme to be willing to pay a larger fee for the occasional usage, but never sign up for a plan many already know, they will never need nor utilize.
I have everything connected via WiFi, and if possible, I stay this way, which is why I have placed commercial 'S' band collinear antennas at both of my WiFi locations. I need the range, and refuse to be 'tethered' to my home or shop. When I am working in my RF shop (Farady cage), I need a good signal, but NOT the bandwidth, and I dropped VZW as a contract plan as we do not need to pay for things we seldom use.
I love a good NetFlix movie also, but not if I need to upgrade my plan to stream the latest Star Trek movie. I am already paying for this, and have no need to stream via my phone's data connection and incur still more fees and charges just for streaming. My wife and I watch our usage, not for cost, but to see what we really need and use every month, which is why we decided to opt for a prepaid plan, which gives us everything we need and use, and when we feel he urge to get crazy, we use our internet and WiFi to stream music and video on our walks at night. It's nice to listen to your choice of music on your phone when you are nearly a mile from your WiFi connection, but I will not divulge how I get that distance!
This is where we save $$ by not buying into bloat plans, spending more for things we do not need, which means more $$ in the pocket for us.
After being a cellular customer since 1984, I no longer need to use more than I actually need, nor do we need to stream everything to our phones. For us, a prepaid plan makes far more sense.
My arms have shrunk since I no longer have to lug around a 'transporable' phone...And I have three in my collection, including the last model by Circle-M that I gave to my father when I was an employee of a local cell company ( now I contract to VZW and Cel.... So instead of a phone, I drag spectrum analyzers and test equipment/computers to commission cell sites).
I apologize, I tend to get a case of typist's diarrhea....