Hello good people, I try to live by the maxim always get the best that you can afford. I would like to understand what can be done with a maxed out rMBP. I surf, game, photograph, create documents and communicate (email, chat, IM, Skype). Why spend $2,500+? What more can you do with such a machine? I need to know because if i save and purchase one i had darn well better be able to explain why or my little brother (age 46) will tease me. Seriously I would like to know what a person can do with that type of computer.