BRK.B also votes, but with much-less voting power. It isn't to discriminate on class (which is a definite side-effect), but rather to discriminate on time-hori

BRK.B also votes, but with much-less voting power. It isn't to discriminate on class (which is a definite side-effect), but rather to discriminate on time-horizon. Berkshire plays the long game and has taken great pains to attract/retain long-term shareholders. (As has, to an extent, Amazon) Almost nobody can afford to day-trade BRK.A. Furthermore, most holders of A probably don't want to sell on any given day. If you want to trade Berkshire on short timescales, B is available/liquid, but your votes don't count for much.