gb = gigabyte
air = macbook air
rmbp = retina macbook pro
My 2pence worth, having studied/worked with computers since 1989, DOS was the worst thing to happen to computers, it created the way for Windows 3, then 95, then the huge rush to NT. MS should have spent time replacing DOS with a protected mode earlier rather than turning windows 3 into a shell with glitz (Windows 95).
During that time Linux came to the world, a little later than Windows NT, but it's getting there and free. Yes, it's not got as nice an interface as Macs, but its free, and the skinflint that I am gets a nice warm feeling from it. Did a mega upgrade of computer stuff here recently, everything entry level and way above what I need to run many VMs in at once (that's a computer within a computer, think Inception/Matrix/world-within-a-world). Actually, VM's predate Mac/Windows entirely, back in the mainframe days they were called System Partitions... but that's not what I'm posting about.
Long story short, or short story long, if you get on with it, don't change it. Computers are a tool for getting a job done, too many people carry super computers around in their pockets called Smart Phones, weren't they for making phone calls on, rather than browsing facebook to make sure nobody mentioned them in a post, and if so, reply *immediately*. We've gone from watches that needed winding every night, to Casio's that had battery life spans measured in decades, to personal (dumb) phones that have battery charge cycles of weeks, back to something that barely lasts a day. Really world, you're doing it wrong.
Think I went off peist somewhere above, but you get the point if it ain't broke, don't fix it... when it is broke though, its nice to know that the inerds of the Mac stack are always going to be the same reliable components. There's no guess work involved. The stack I like the most (Linux on Intel) is hard to diagnose if you can't see the computer, you have to use programs to tell you what the hardware is, where disks are physically and it can be quite hard to get it right when you're talking to someone over the phone. At least with Mac (and even HP) hardware it's quite easy to tell people where things are and what it's made of when it goes wrong.