Ok so I am in the market for a new MBP, I am at the end of the usable life of my white MB that is 11 years old. The dilemma for me is basically that I want this next MBP to last me as long as humanly possible due to the price of it. So what happens is when I go to configure a 13 inch I always end up at pricing that is close to the baseline 15 inch. Now to explain what I am going to be using this for to set some perspective. Basically this will be used for internet use, some music stuff, and kids homework on occasion and just an overall central hub for managing our household data, pictures, video etc. But before you tear me to shreds for considering a 15 inch MBP (or a MBP at all), here is the way I look at this purchase to some extent. My experience with Apple laptops is the more specs you put in it (especially RAM) the more headroom you have, and the longer the machine will last. I don't mean last from a durability perspective, I mean from a longevity perspective. In other words I prefer NOT to be back in the market for a laptop in 5 years. To make matters worse as far as a decision goes, I recently got my kids an open box Lenovo Yoga 900 for Christmas, for $650! It's normally $1300 the way this is spec'd. I've been test driving it lately and I really like the machine, and quite honestly it would serve me just fine, but here is the issue. I HATE WINDOWS!!! So this brings me back to a Apple and the MBP, and buying a machine that will hopefully work for many years. Most Windows machines I have ever owned I always felt I needed to replace them after 3 years, maybe things have changed now not sure since it's been 11 years. Overall I just feel like I am spending more $$ than I "need" to, but want the MAC OS and longevity which comes at a serious premium. Am I looking at this the right way? Let me know what you folks think. Should I just buy as much machine as I can? I can afford it, but that doesn't mean I need to be stupid with my $$. Just trying to make the right decision by getting some additional input. Thanks!