Since FFH was mentioned, I'd like to make a statement.
I am 38 right now. 25 years till retirement. My wife and I have a Roth-IRA (and other retirement accounts through our employers). In our Roth-IRAs I decided to start buying companies like Berkshire, FFH, etc and stop trying to do better than the likes of Prem Watsa (in retirement accounts

).
So, 2-3 months ago my wife's account had a bunch of FFH placed in it. I dollar cost averaged into mine. And next year, I am thinking that FFH will be placed into both.
25 years from now, I don't see why FFH would not be a $100B+ company. That's modest though. It's $15B today. I figure it should be in the $200B+ area by then.