The Macbook Air 11/13" is a solid solid workhorse. You don't necessarily need the extra power that MBPs offer. My 2012 MBA is still perfect today. Two things

The Macbook Air 11/13" is a solid solid workhorse. You don't necessarily need the extra power that MBPs offer. My 2012 MBA is still perfect today. Two things to note: 1) Max out the RAM and CPU 2) The 2015 13" MacbookAir has much faster PCIE storage for some reason In addition to this, I sometimes remote desktop into a £500 Windows Laptop (80% as fast as TOP-end unreleased Broadwell) from pcspecialist.co.uk with an i7-4810mq processor). Also has nvidia 860M graphics! 15" MacbookPro with old graphics for £2500 is outrageous.