Iowa has picked the eventual Dem winner in each if the last FIVE election cycles, and the "16 years" is quite misleading on the GOP side... picked W in 2000, and he was unopposed in 2004... in '08 Huckabee won Iowa, and in '12 Mitt tied for first with Santorum... so they've only been "wrong" once in the last four GOP cycles, and not at all in the last five Dem cycles.
Haters gotta hate, I guess.
Iowa was of utmost importance ... until Ted won.