I on the other hand wouldn't have bought the Macbook Pro, but ended up doing so because it had now become the "Macbook Air with retina" that I'd been waiting on for ages (...although a shitton more expensive).

More battery would be nice, but thinness and espcially weight matter a great deal to me. I literally sometimes don't even have my charger with me, because that small amount of added weight annoys me a great deal. Although I'm probably a bit extreme in that regard.