What do think about the option of a refurbished 15" Retina MacBook Pro instead of a 2012 Mini Server or 2014 Mini. The laptop has 16GB RAM 256SSD and 2.2 quad core i7 for $1,699.00. There is a difference in price but when you configure the Mini with the same RAM,SSD,keyboard and trackpad,the difference is less and you get a nice retina display. Are there any negatives in using the laptop as a CPU? Thanks