Yes, generally if you live in a high population area in the coasts of the country there's a chance you could have DSL, Cable, Satelilite, and possibly cell.
In many places of the company however, there's only really one choice, maybe two if you're lucky.
Not to mention Cell service as your internet is already experiencing some of the issues, with the "unlimited internet" offered by them being hardly "unlimited" but actually generally capped at about 5gig by their TOS.
Hell, I'm in Northern Virginia...hardly a middle of the country BFE type place...and my only options are Cable or possibly cell right now. Verizon won't run its FIOS connection to my apartment complex, and we're not in a position that will get good Sat coverage. I could do Sprint or AT&T, but see previous issue.
No, its frankly not an open market. Just because a few places give you a few choices of "internet", though hardly a few choices of TYPE of internet, doesn't mean that's the norm.