I can't recall the last time I even heard of somebody in the US having the choice of more than two high-speed ISPs. At best, your choice is cable from one company and DSL or fiber from another. I'm sure there must be some places where there's three or more, but they must be extremely rare.

There are more if you count wireless, but those don't really work as a substitute for real home broadband, even with companies (e.g. Clear) that pretend they do.