Two-year-old ThinkPads (the real ones like the T and X series) are great deals. I did buy my T480 new (I wanted features like the best screen that are hard to find used), but my wife and mom are both using T470 units that we bought off of eBay. My mom's unit turned out to have a charging issue, but we discovered that it was still under a three-year extended warranty, which is tied to the machine rather than the purchaser; Lenovo replaced the motherboard on it with little fuss.