Quote from codedeep007:
Birkshirt has a entire home building company Buffet bought while Home Builder stock Peaked (all cash?), He has a few shoe factories which lost all market share to China. He bought tons of USG. A candy store when everyone trying to cut sugar consumption. OK he has a newspaper but we are now in Internet age.
He doesn't know how to spend money, donated 1B per year (I guess someone has to sell some stock for him every year)
Yes and No. The builder company that Buffet bought is in manufactured housing, which is counter cycle to the ordinary builders. So when the other home builders peaked, the manufactured home builder bottomed. It is as simple as that.