I am buying a 15" Macbook Pro Retina. The computer will primarily be used simply for office/work functions (i.e. web browsing, office, remote desktop, etc.). I don't foresee any gaming on it. I am inclined to get the base 15" Macbook Pro w/ Iris Graphics but maybe upgrade to 16GB of Ram just to future proof it since the ram can't be upgraded. Should that be sufficient? I assume if I am not gaming, etc. there is really no need for the dedicated graphics and the $500 price increase for the next model? Thanks.