I've read the many previous posts on this topic, but most of them are somewhat outdated, so I'll give it another shot. I've got a Windows XP computer that needs to be replaced very soon. I seldom use that computer because I have an iPad 1 that seems to mostly suit my needs. But despite it's greatness, the iPad isn't a computer replacement––at least not yet. So, I've decided to go with either a 13-inch or 15-inch version of rMBP. I'm retired, but I do volunteer work as a cold case analyst, so I'll do wordprocessing, spreadsheets, email, internet research, and diagrams using the new iThoughts for Mac. Also, I might try photo and video editing, but neither of those are great concerns. The previous posts on this topic seem to say that one should get the 15-inch model because it has a better processor, and other features that don't come with the 13-inch model. I'll be carrying the computer with me to work most days, but compared to my old HP notebook, the size of the 15-inch isn't an issue. And the price difference isn't important. So, to those who previously recommended the 15 over the 13, do you still feel that the 15 would be the superior computer for my needs?