I got mine as soon the slim models got released. 27" Late '12. My very first Mac really, and coming from building PCs I maxed it for future proofing. 3.4GHz i7 GeForce GTX 680MX 2GB 3TB Fusion drive And upgraded the RAM to 32gigs of Corsair memory. It's been holding out well, considering I had to use the warranty twice. Once for a failing hard drive and once for screen smudges, but it is turned on 24/7, year round, as my PCs were. Other than that it's solid. Since it's still quite fast for day to day use, I'm thinking of keeping it at least as long as Apple supports it with newer OSes. The day a new MacOS is not compatible, I'll start considering a new machine. How about you?