Last week I wrote a rather, shall we say, "robustly worded" post discussing the lack of upgradability in the new MacBook Pro with Retina display (MBPwRD). This contentious post turned into one of my highest-traffic articles for TUAW ever, and certainly my highest-commented one (possibly helped a bit by Livefyre being the best comment system we've ever had). I am grateful to everyone who took the time to write one of the 192 (and counting) comments on my original post, even the ones who voted for "Gaywood is an idiot!" in my tongue-in-cheek poll. Many of you disagreed with me, and in so doing, raised a number of counter-arguments again and again; I want to dig a little deeper into tho
