I got a $400 Thinkpad X131e with a 128gb solid state drive. I could throw this thing against the wall a few times with no discernible effect. The keyboard feels awesome. The matte screen is easy to see in sunlight. Really the only thing that bothers me is the low resolution compared to my tablet, but basically every laptop except for the Retina Macbook Pros and the Chromebook Pixel suffers from that issue, and I have no interest in spending that much on a portable one drop away from death at this point.
Not having to treat my laptop like there's an infant in my bag is a revelation. This thing won't flex from normal portable usage like a shitty Toshiba, nor will it get those horrible black scratches against the anodized aluminum surface that Macbooks suffer from.
If I do get another OSX machine, it'll probably be a Mini or something. Windows 8, Gnome 3, Elementary OS... nothing really tops the look and feel of OSX. I'm all for playing around with various business class laptop brands, I just don't think I can go back from the build quality on this thing. That X1 Carbon looks pretty inviting from here...
I totally get the dumb tracknipple now, too. It's all about workflow. Now that I'm in the habit of using it for quick nudges while I type, it's a lot nicer than taking my right hand off the keyboard just to move my mouse half an inch across the screen. It's also really good for scrolling.