So here is my question - I need a new computer sooner than later and really would like to get a 2016 when they come out in March. What do you think about buying a used older one to hold me over in the meantime? I can then pass it down to my kids (grammar school age) to use when I upgrade. Or should I get a more recent refurbished one from Apple and pass that one down because it will then last longer. If you think to buy used, where would you suggest? eBay? Craigslist? A 3rd party vendor? Thank you!