Rand is trying to present an image that he is serious compared to Ron-Dad who was happy being that crazy cult hero libertarian.
Per this threads comments by him I had to think about why Rand would go out on a limb and depart from Ted (against a shutdown to make Reid Obama cave) when he knows how much grief it can bring him with talk radio audiences(and here)
Most likely:
1) He wants to run for POTUS, and he figures he’d never get the nomination if he trashes the majority of GOP senators.
2) He wants to be able to get GOP Senators to side with him in 2015 if GOP takes Senate back and he thinks getting them to hate him will keep that from happening.
Just my guess, these wont go well here, so Rand is with Ted, but then he is not exactly with Ted on positions
Rand and Ted agree on far more than say McCain and Cruz...
Rand and Ted are right on a lot ofstuff. We need more like both of them and less McConnells, Grahams, McCains, Ect...