you are correct. the only reason i generally speak about Dow pricing is because, sadly enough, most people dont even know where in price the S&P trades, let alone, many people only know the Dow because it has a higher number than the S&P, therefore, it must the THEE index.
You talk SPZ with institutions. You talk Dow on message boards and general public, ie., my parents or next door neighbor. Although, many here understand the meaning of the SPZ.