Putting more primaries up at the starting gate would more than likely yield a split verdict and lengthen the campaign.  Imagine a 2008 campaign starting with Iowa, New Hampshire, Nevada, and Mayland.  We might have four separate winners.  Rather than lavishing tens of millions on the 100,000 to 120,000 caucus goers of Iowa we'd split the riches.  Hey, throw in Michigan and Arkansas.  

At the very least let's make Iowa and New Hampshire the same day.  In 2004, polls indicated a split verdict (Kerry and Dean).  In 2000, another split verdict (Gore and Breadley).
Everything being equal (and I know that NH law stands in the way), scrap the caucus and make Iowa a primary.  Maybe we'd get a bigger turnout and we'd avoid the horse trading that makes most of the candidates also rans.

I READ the Des Moines Register on a weekly basis over the net for three years and on a daily basis for six months because of their outsized influence.  (Yes the paper itself is a major presence).  This is nuts.  But it is reality in 2005.  

Spread it out.  Get rid of the stupid retail politics which is NO reflection on how candidates perform in a national campaign.  Let the regional influences be felt.

Finally, thank you Michigan, the sole voice of sanity!  Thank you Senator Levin!