It's a waste to blast out an application to ALL the schools. The 3 mentioned above have very little interest in out of state applicants, as does TCOM (I believe). PNWU apparently focuses on the Northwest region (AK, WA, OR, ID, MT) so it again would be wasteful to apply there unless you have a special rural or underpriveleged background.
And of course cost would be a prohibitive factor for many. But if not, then by all means apply across the board. You'll write a ton of essays and checks, and hopefully impress someone enough to interview you. Make sure you have met all the pre-reqs, as some schools have biochem requirements (DMU-COM, KCUMB, etc.) and not everyone has taken biochem.
Finally, only apply places you actually would attend. Don't be one of those jerks who applys, interviews, gets admitted and then withdraws only to reapply the next year because you didn't want that particular school.