Self pub? The times they are a-changin?

Visited J.A.Konrath's blog and he has up an interesting post about the evolving world of self publishing. I know for years self publishing has been a big no-no and thought to be only a thing to stroke the ego of a writer who has yet to be able to go the conventional route. But now?
I think it's a new world for publishing. Like everything else evolves so has book publishing. There's been many a time I laid down my good bucks for a book that should have been used to line the bird cage. As a yet unpublished (except for the Trues, ehow and Livestrong) writer I knew I could do better. I'm sure others have had the same experience. There were times I wondered if getting your book published was 50% talent and 50% luck. Hit the right agent on the right day when your words would hit the right ear at the right time.
So now we have Amazon's epublishing stuff where anyone can put their book up for sale. This means some books are going to be not so good. Wait, I've already paid good money for one (or ten) of those and they were from traditionally published authors.
So now I think about ebooking it and my biggest worry is the polishing. I want it to be perfect. I want perfect grammar, flow, execution and everything a good agent and editor would catch.
What about you? Do you ebook? Do you want to? What's holding you back?