I used to have an "A" share and made good money off of it.
I wish I had rebought when they were down around 57,000...but that stock worries the heck out of me. While Warren and Charlie say all the right things, I'm certain that the day Warren kicks the bucket the stock will drop by 50%+.
If the guy didnt have such a penchant for dairy queen burgers, I'd be less concerned.