I'm on Comcast because I was a Verizon early adopter, with DSL in the 90s. It got to the point where even their cheapest packages were at least an order of magnitude faster than my speed. Sure I could have called and gotten a new package, but it's like they were just keeping me at the original speeds out of spite, like they actually had to do work to keep me so slow. Just like the stories of that little old lady who's still paying a monthly rental fee for the phone in her house.
I'm sure Comcast will do something to piss me off in the next few years and I'll go back to Verizon.
In some places --the ones that had the foresight to not grant a cable monopoly and thus the ones where Comcast has to compete straight-up with other cable vendors-- Comcast is apparently alright.
They still have the top-level corporate nonsense going on: the dns hijacking, the traffic shaping, the usage meters, etc. But most people don't notice that stuff and they tell me they're reasonably happy with the service. They're certainly paying less than I've ever been quoted in Comcast-monopoly-towns.
I guess the cap is a bit annoying. But I've never come close to it. I suppose if there were an alternative as fast and as reliable I might consider switching simply do to Comcast's policies. But I've never felt their evil directly.
I'm not sure if that's the real number, but it if were, it wouldn't surprise me.