I think InvestorDiv misses an important point here. ACAS, ALD and all of the rest of the business developement arena have black boxes - as far as the value of their holdings go. The public never gets a peek at the books of the companies they have loaned money to, their "book value" is not open to scrutiny. Obviously, "trust me, trust my books" is not and has not convinced Mr. Market over the past 20 months or so. The yield is not attracting many, and there are a lot of bright hedggies out there.

As for Warren Buffett being "diversified", the last time I looked he's never owned Google, Apple nor hardly any tech stock I can remember - prefering stellar growth names like Coke, GM and his latest brainstorm - CarMax, which is looking like a disaster.

There is a well run hedge fund (Seabreeze Partners - Boca Raton, Fla.) with an enviable long term record. Seabreeze is short BRK shares, FWIW.