It is DOCSIS, not DOCSYS: http://en.wikipedia.org/wiki/D...
With that said, no, it isn't going to create anymore of a divide than already exists. I have Brighthouse Cable, and I can get their 90mb plan for around $80/mo, but I am sticking with their 30mb plan that is bundled with their basic HD plan. Why? I used mrtg to monitor my usage and found that I wasn't taking advantage of the extra bandwidth. We (at least in the US) have no services that take advantage of the extra bandwidth. I can stream Netflix, Amazon, etc... in HD just fine. Granted, their idea of HD sucks, but that isn't the point. Before the MPAA found out about USENET (and I still want to find out who talked -- and beat them), I more than took advantage of the extra bandwidth, but now that USENET is gone (well, so neutered as to be useless for my purposes), I never find myself "waiting".
Now, what we need is more UPSTREAM bandwidth. I get 5mb up, and that is usable, but having 30/30 would be REAL nice.
With all that said, this is obviously *MY* use case scenario. I would love to hear from others in the US that need more than 30mb, and what you use it for / how you use it.