So my 2010 13 inch macbook pro has just had its 3rd anniversary, i am lucky that i ordered it with 8Gb ram as it has and is still flawless in its performance, but now i'd like something new, possibly the new 15 inch retina or the one i just found on refurbished store for £1.3k. I use it mainly for office applications, itunes, web browsing, and i'd like to be able to play Bf3 on it (bring it haters), but i don't want a windows pc or a bundled heap of wires in a plastic box as some people like to call gaming pcs, as i like having a neat sleek and modern package that can do everything. Anyway how many years do you think you should keep a mac for? Depending on use/performance/needs/cost, all of it, for me 3 years seems to be the sweet spot, as i just got £420 for this which i'm happy about as its got a dent in the side. So for me about £330 a year for mac isnt so bad... I'd' like to hear all your views though!!