Preface: If you want to skip the backstory, theres a TL;DR at end. I had a Macbook and a Macbook Pro as my primary machine from about 2006 to early 2013 (sold the MB for the MBP after 3 yrs) and also have had a few old ones just to mess around with (2003 iBook, 2006 MBP). In early 2013 due to some financial issues (had recently built a gaming desktop PC) and changes to software at one job (which wasn't usable on Mac at the time) I sold the MBP 2009 model for a Thinkpad. At the time it was a decent deal and worked out for about a year or so. But yada yada yada, the Thinkpad is now a little more than 2 years old and no longer useful for work/school. In fact it's probably about to fail completely. Every Mac I've ever owned has been pretty flawless even after 3-4 years still like new. That said I'm still a broke doctoral student and am comfortable with Mac OS X and also comfortable with upgrading, troubleshooting, and fixing older Apple laptops. For laptop needs for next 2-3 years I really just need a dependable machine that can go in and out of a backpack daily, do word processing, run a few apps, and access the internet. It also needs to have a Superdrive/CD drive. Not worried about retina displays or anything. Would prefer non flash based HDs and upgradable RAM. Honestly I'd prefer to spend under $600 on one. Maybe even less if possible. The question of course is how old could I go before it really becomes an issue of being completely obsolete/unrepairable? I;ve seen as old as 2005 models for sale on sites like Mac of All Trades. But most seem to be around 2007-2011 models. Oh and I'll readily eat crow and apologize for older posts where I thought moving strictly to PC instead of all Mac or a mix of Mac/PC was the greatest idea I never should have had! What would you guys recommend? What's the oldest you'd go for word processing/daily commuting use/web browsing. Thanks! TLR: Need a used Macbook/Macbook Pro for low cost for word processing/web browsing/but also daily heavy use and commuting.