I completely agree. Most folks interested in working for a startup have founder ambitions themselves. When you really think about it, if you're going to ride the roller coaster, you may as well do it as a founder. Otherwise (unless you change your mind or happen to join a very successful company), you're going to have to do it all over again anyways.

EDIT: The moral of the story is that it's up to the hiring startup to convince you they will be a very successful company, beyond an exit that only windfalls the founders.