Probably the 10000th time someone has asked this question but i realized everyone's needs (and wants) are unique, hence i decided to post. I'm just a general user (surfs, youtubes, check mails, skypes) who does photo editing on photoshop. May occasionally play some games (Football Manager). I would wanna get retina cos it is the latest gadget (and cos it's lighter), and I would be using this laptop for the next few years so I would like to future proof it. I like the specs that come with the 15" but size and weight-wise, the 13" caught my eye. I can't, however, convince myself that the money I pay for the 13" is worth it. Neither can I convince myself that the 15" is an okay size. Any help/advise would be appreciated. Thanks!