At 78 years old Warren Buffet is still playing with CHOO CHOO TRAINS, but their no longer the Lionel Trains from childhood day's. Looks like the Oracle of Omaha is amassing a large position in his favorite railroad company Burlington Northern Santa Fe(BNI). Buffett has been acquiring a position in this company since early 2007 and buying it on dips in the $70-80 range. He has also used the tactic of selling puts on the stock which pays him similar to getting a dividend. If the stock hits his strike price the stock is put to him . If the stock never hits his strike price he pockets the option premium. Earlier in the year the stock almost hit $115 per share but has fallen back with the over all market. Here is a link to Berkshire Hathaway's(BRKA,BRKB) current filing.
also be sure and check the link to Gurufocus: