I laughed a bit too. I like Conan a lot, and I think he's only going to do well at all if he maintains his norm and keeps his regular audience interested. The old folks who followed Leno will not like Conan, but I also believe there's no way to win them over either.
They'll simply go onto Letterman IMO.
Letterman I like as well. I loathed Leno.
You've echoed all my sentiments in all of that.