I'd rather have a thousand form-factors and build qualities to choose from than the one-size-fits-all that Apple offers. If Apple doesn't make it, then you can't run their software on it, and they don't make too many form factors.

I can run Windows on a USB stick form-factor if I want to. Or dozens of tablet sizes from various vendors. And every kind of laptop imaginable, with all kinds of features. And everything else up to massive rack-mount server hardware. But sure, if a Macbook is all you need, then go for it.