The question, then, becomes if you gain more than you lose.
I get pissed off every time I open my last-gen MacBook Pro, because I don't like the button. This is an anal mindset. I don't like the plastic outline of the computer, or the buttons and lines that I think shouldn't be there. It affects me a lot. So for me, sacrificing something that means I'll be annoyed one time for a device that's superbly beautiful is wholly worth it.