Depends on how old you are really.  If you're really young, you're right, 1M is nothing.  I'm 37, I could easily retire on 1M I figure with the right investments.  Plus, it's not all that easy to just create a company and generate income. 

I think I'd still probably work for a bunch of years though.  It would get awfully boring not working and when I'm bored I tend to spend lots of money.

Every time I see this thread pop up I instantly think of this song:

http://www.youtube.com/watch?v=UTK57dJc_pU