@ bdizzle
I guess the people owning suitable audio visual equipment will care about such features, they are consumers as well which would like to see hardware which does justice to their setup. Having said that even without 7.1 surround audio on a ordinary non-HD TV set games like Motorstorm and Resistance are really great games, if you like the current line-up of PS3 games you could view the additional specs as an investment into the future.
I understand some people may be upset about the high entry price of the PS3, but Sony still hasn't discontinued its much cheaper PS2 products for which games are available for pretty cheap nowadays. I bought Ape Escape 2, God of War and Jak 3 for my PS3 for less than 60 Euro combined a few days ago (for comparison I paid around 180 Euro for 3 PS3 games, Motorstorm, Resistance and Oblivion)! Great PS2 games and runs great on my PS3!
Due to the higher specs when a much cheaper slimline PS3 is released in a couple of years the console will still be interesting and powerful. New games will use engines taking better advantage of the cell processor and make good use of the additional storage of Blu-Ray discs, some current games will lbe available at budget prices, etc. People may dislike the PS3 for what it is today, but maybe in a few years this may all change dramatically and most people may actually be glad the initial specs were this ambitious...