Sell out with me
This NYTimes story has an interesting take on how authors jump to big publishers after hiting it big. They usually move on to big publishers for more money, and job security.
There are authors who have gone from large to much smaller houses, although most of the time the author who hits it big with a first book published by a small house feels the need for the security and the money that the bigger house provides. So in book publishing, it\'s not a gauche or even stupid to go home from the dance with a stranger.