My sympathies for the heart-rending stories of "disenfranchisement" by the FL and MI speakers are limited by living in Indiana. I was 17 during the close McGovern-Humphrey race of '72. Too young. In '76, Carter wrapped up the nomination before Indiana's primary. No campaign, no candidates. Ditto for 1980, 84, 88, 92, 96, 2000, and 2004. (1980 was a partial exception -- Kennedy still had a slim chance.) Thus, in 2008, Indiana was finally "enfranchised," and it was fun. More than that, it has created so much voter interest that for the first time since 1964, Indiana might well be "in play" this fall.
So give me a break, Florida and Michigan, if this is the first time you've been "disenfranchised" because the candidates didn't come to your state. The only good thing that can possibly come out of this divisive nightmare is a new system where everyone in the country has a voice in the process -- perhaps rotating regional primaries?
Having said all this, because of the need to win in the fall, I think both states should be fully seated, in some form.