I really like your mindset. For me 1 BTC is just 1 BTC. No need to consider its $ price.
But keep in mind many people are here just for speculative purposes and don't care about blockchain technology, Bitcoin and so on. They think to cryptocoins just as a good way to make some dollars buying it and then sell it at a higher price. That's why people look so concerned about USD price.
I am with you regarding with this since most people now are not really thinking up too much on the technology behind on bitcoin but rather they do always think up on how to make dollars out of it which means interest for having an independent value isnt really there because people do always love to have fiat money and we do know this has been the motive of each everyone of us. Talking back if bitcoin would tend to have 1 btc=1btc value then where does its value came from?