When will comcast/xfinity have respectable upload speeds for the 20's? 11mbps for $73.99 is a lot for very little, especially considering they use docsis 3.1, that is capable of 10 gbps down and 2 gbps down
They do not yet have DOCSIS 3.1 on the upstream.....
The current upstream / return path bandwidth spectrum allocation on DOCSIS is physically limited. It's the nature of the beast. This is why there isn't as much flexibility with offering faster upload speeds compared to the download.
Here is an informative article about the future for the upstream bandwidth capability for DOCSIS based systems;
They do offer a 2 gigabit (with symmetrical speeds) FTTH (Fiber To The Home) service in some areas.