I purchased (and will hold probably forever)the National Bank on March 7 last year mostly  because the dividend was something like 4.75 % and the PE was not insane. It turned out that the stock has gone up 50% since then and although I see no clear reason why it has had risen the most of the six banks(own them all), but am thankful just the same. 
I looked at the American banks and saw low dividends and future lawsuits and took a pass, but you and Warren saw something I didn't see. Why did you buy the low dividend BAC ?