I don't care where and how majority of people in the USA use the internet. Net Neutrality provides a safety net and thus a sort of "free market guarantee" that as soon as these "handful of sites" start getting too comfortable in their monopolistic positions and start sacrificing quality or cost for higher profits, that a new service can very quickly spring up to compete.

Net neutrality is what allowed these sites to exist in the first place and push aside the Altavistas and Myspaces of the earlier Internet!