My daily machine at home is still a 2011 Macbook Air with 4GB of RAM, which is admittedly not enough. My work machine was a 2012 Retina MBP with 8GB which was PLENTY for all of my everyday needs except when running VMs. To this day, 8GB is enough for 'most' uses, and my work machines only have 16 to get me over that "8gb-is-not-quite enough" hump. But I've got retina displays everywhere, and a 5k iMac at home. No clue how much memory it has, to be honest, but 32 is insane for not just the average user but even most power users unless they have really specific needs.