As someone who is one for 1 gold and 1 space gray one (as you have bragged in every MB thread), you clearly don't care about the flaws.
However, try to see it through the eyes of someone with an ~5 year old Mac laptop that is looking to upgrade. They're probably coming from a 13" cMBP or a MBA, circa 2010 (the two Mac laptop lines without discreet graphics, considered most portable back then). Most importantly, they want it to fit into their existing workflow without disruption, then improve their workflow. They're hoping to be able to use their existing accessories: various thunderbolt to hdmi/dvi/vga adapters, mouse, external hard drive, thumbdrive, etc. until those accessories are no longer needed. They also want a retina display. They want improved battery life. The ones coming from a cMBP want it to be lighter.
As it stands now, neither the rMB nor the MBA fulfills their wants.
I'm upgrading from a MacBook from 2008. The new MacBook suits my workload, my portability needs, my desire for a retina display, and I hardly ever use any of my current ports. Plus it has improved battery life.
You'd probably be surprised about the amount of Apple customers that don't use the full selection of ports on offer with their current Macs.