Me too, me too--if your first stuff is big-boy level, better yet--big agent level--champagne time!
I was trying to envision a rational approach to work with legitimate small indie epubs, because many people will a) realize their first efforts aren't Random House level yet, or even Necro Press level, and b) still want to see them in book format, yet c) for some reason or other are not OK with going with self-pub way.
...If, for example, everyone's first sci-fi efforts are picked up by Tor or Ace or Daw or Baen or Pyr, it's not like they should say "Nay! I shalst turneth thy down and moveth overeth to Zumaya insteadeth!"
But if it turns out the first efforts are, after all, demo level, but one doesn't want to trunk them, then...
And, of course, if the demo turns out to impress no one, that's another issue to keep in mind.