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.
If price is not really that important will you mind selling your BTC for a dollar? If not then you care about the price, the price you see in exchanges is the fair market value of bitcoin, the current price is an agreement between the sellers and the buyers of where is that price, and it is important not only for bitcoin but for everything, take water as an example, water is cheap but if there was a shortage its price will go through the roof, bitcoin despite all its technological advances is the same no matter how you look at it.