And, you can get a lot of the benefit "for free" by just buying BRK.B shares, without all the pain of drinking cherry coke all day and reading SEC filings.
I'm not so sure thats true from a financial perspective, at least if you mean him being an outlier. The financial market should have priced in these benefits, that means you can expect only normal "market" returns from these shares. So you won't get them for free.
I don't need to. Past performance does not predict future performance, thats one of the most basic lessons in stock investment. Also you have to compare the growth to an index to make a sensible argument, just looking at the graph won't really help me.
