Just for the record, I think Warren Buffett is crazy for buying Amazon's stock at these levels. The huge distance away from its 200-week moving average shows enormous downside risk potential vs. upside reward.
Seems very "Un- Buffett like"
Buffet and Munger are not big fans of gold either but gold certainly appears to be a good place to be now. Nobody is correct 100% of the time. :) That said, this investment may have something to do with the Birkshire H., Amazon, and Chase cooperation on their health care venture. That would appear to be somewhat of a political move.