it's welcome statement given by Nitish babu that he will not do such folly to become PM. He can hardly win 17 seats from Bihar and that is not enough to become PM. He also says that He did foolishness to leave BJP, even in its height, because he had more attraction with principles, rather the gain from the BJP.

I absolutely agree with this emotion of Nitish. After all Nitish is not a clown politician like Kezri. He clarified his stand in a clear cut manner. What he has done for Bihar in the past, we all are indebted to him.
i personally feel that it was not a wrong decision of Nitish to leave BJP as his partner, just because of NaMo factor. Only the timing was wrong. If Nitish would have taken this stand after Loksabha election, it would have been more meaningful exercise.

We also felt LKA would have been much better candidate for PM. UPA was sure to loose in 2014, even in case NaMo had been not a PM candidate of NDA.