Because if he just “suspends” the campaign, he can continue to raise money. And, yes, there are people that dumb in this country.
He has promised to endorse another candidate, meaning some poor soul is going to bear the “mark of Cain.”
The GOP today closed one of the rings in its circus, but it has many more to go before it looks like a serious political party and not a really crappy reality show.
Embattled Farmers 
The Cain Mutiny was about the psychotic Captain Queeg (sp?) and his obsession about missing strawberrys.
The Herman Cain Mutiny was about a psychotic Herman Cain, just like a typical Seinfeld episode: a show about nothing.