Nothing sad about it at all. There are very, very few things in life that make more sense than the utter failure of Jeb to acquire more than single digit support. Of course, the satisfaction of seeing him fall on his ass has the potential to be to be topped by him dropping out of the race altogether.
I do not want to see Jeb drop out, and I suspect neither do you until after the final primary. So long as Jeb, Christie, and Rubio stay in the race together, they divide the big government, pro-Amnesty RINO vote three ways. That's a very good thing.