It will be a different election in 2016. The country is now already gone, therefore, Conservative will not feel obligated to try and save the country in 2016 as they did and got behind Romney in 2012.
Plain and simple if a RINO like Christie is nominated through backroom GOP-e deals then a Democrat WILL win.
I didn't vote for Romney at the caucus. Romney may have gotten about 20% of the vote here in Iowa, so someone voted for him but most voted for others.
It may be more beneficial for not so many conservatives to get in the race.