Currently have an early 2013, 13" Retina Macbook Pro with 2.6/8GB/256GB. Warranty has expired. After looking to get rid of it on the local classifieds, I was offered a late 2012 Mac Mini with 2.5 GHz chip and non-OEM parts consisting of 16GB memory and a 256GB SSD. The original memory and HDD are not included. Can anyone offer up what they feel is a fair amount of cash for me to resell the system for so that I can decide how much money I ought to be asking for on top? Additionally, my biggest concern is the risk of a Mac Mini refresh next week - is this just a foolish idea altogether, or are there any redeeming qualities?