i can buy a 2015 15" BASE model form craigslist. No warranty / no apple care and battery cycle count at 200. Bought in march of last year. Nothing seems wrong with it. Price is $1500 (CAD) OR i can buy a refurbished BASE 2016 13" for $1800 (CAD) from apple. Obviously brand new battery / 1 year warranty. Whatever i buy will be mainly used for programming. I don't care that 2016 models need dongles. I have tried both keyboard and like both of them. which one is the better buy? I am so confused.