I use a prepaid cell for home internet. I get 3gb for $35/month, and after that it gets throttled to 2g. My work cell has unlimited data, but no tethering or hotspot. I could get that added on to the plan, but I like having a second phone as backup. I've used it a couple times now when my work phone died, and I was waiting for replacement.
A few years ago I bought a modem, with the intention of getting comcast again, but couldn't bring myself to get their service. My setup isn't great, but it isn't bad either. It focuses attention, and I'm not as likely to get lost in stupid stuff, since I pay for everything. I like the clearcut nature of 'I give you money, you give me stuff', with no further obligation from either side. If I want to do something different next month, all I have to do is give a different person money for different stuff. The price of freedom :^D