Yes, I've also noticed an increasing number of software bugs on my Macs. FWIW, I wanted to try out the Dell XPS "Developer Edition," which appears to be about as close as you can get to a Macbook level build quality in a linux box (without having to jump though the hoops of installing linux on a macbook itself), and you simply can't order it from Dell's website. A chat with a rep suggested that it's out of stock.

So, I think Apple is creating market opportunity -- a high quality linux based laptop aimed at developers that, like the Mac, doesn't require constant fiddling or kernel rebuilds to get working.