Strangely quiet around these parts...
Don't get excited. This same thing happened in 2008, Obama consistently polled only a few points ahead of McCain in MI, so you guys said McCain could win it and it was a swing state. But McCain never polled above like say 44%, and Obama's ceiling was higher. If a candidate's poll numbers vary from around 45-49%, then a 46-44% lead over an opponent doesn't indicate a swing state when the opponent's numbers don't move. Look at the numbers now, at least 49% of the state will consider voting for Hillary. The most one of your guys polls at is 42%. If a GOP candidate can poll above 45%, then it might be winnable.
Indeed, a good parallel was to some polls that showed Barack Obama up 45-43 in North Dakota or South Dakota in 2008. He ended up getting the 45% and nothing else.
Republicans are going to win their base in Michigan in 2014 and 2016, but winning anything more is going to depend upon unusually-strong candidates or gross failures by Democrats. Winning only the base (means losing 56-44 in Michigan for either Party).