So I have been doing a lot of thinking recently about the upgrade cycle people buy their computers. I know some people use their macs until they die but more often the software renders machines obsolete rather than actual machines dying. I remember the first mac I had was a lovely 27 inch iMac that was a dream but after 6 years there was not a lot of new software that would run smoothly. What makes more sense, to upgrade often thus having access the best OS, hardware and software? Or is it better to upgrade every 2,3,4, or 5 years?? I know for a lot of people it comes down to money, but upgrading every year is just stupid expensive and also the improvements often do not justify the costs of the yearly upgrade. I was wondering how often you guys replace your machines. I have been searching the forums and have seen people vary with such answers as every two-three years being the majority. If you were to replace your machine every two years you could reasonably get 50% of your purchase price back on a website like ebay or ksl or craigslist or what have you, so every two years assuming you pay around $2000.00 for a laptop (retina macbook pro) it costs you $1000.00 per 2 year cycle to upgrade or $500.00 a year if you break it down like that. I was wondering what do you guys think of this? What if I were to buy a refurbished macbook pro from apple lets say the 2012 15 inch retina. Right now I have seen some selling for 23-25% off from Apples website, of course there are supply constraints but if you look and wait they do appear. Now hear me out and tell me what you think of this....... So the laptop would cost around $1600.00 keep that laptop for a year and then sell it for as much as you can lets just say $1000.00 for arguments sake. Do you guys think it is worth it to always run a macbook that is one generation behind and buy refurbished? You are still upgrading yearly it is just one generation behind but still comes with Apples great warranty. What do you think? Is this a good idea have any of you done this or would you even consider it? I am anxious to hear what the community thinks? What about a similar concept for an ipad or iphone. With my iPad what I normally do is buy on black friday from macmall and buy tax free and for a good deal and then right before or after apple announces a refresh I sell my ipad. I may go a month or two without an ipad but I feel like it is worth the money. Please share with me your thoughts.