It is really sad that there isn't a single PC OEM that can figure out the 5-6 simple rules used by Apple to build a good computer, and scale that down to $300-$800 territory. It is easily doable, but nobody is doing it.
No nonsensical touchscreen, just a good trackpad, good keyboard, decent screen, generous battery and pure SSD. It should be easy to build a $400 laptop with these rules, less powerful hardware than the Macbook Air but still plenty powerful for the common user.
But no, nobody understands it. So the PC industry deserves this.
No, it's not easy to do. Especially for the PC OEMs precisely because they don't make the OS. For example, the "good trackpad" and "generous battery" that you mentioned. It's not as easy as just sticking some hardware in a frame. It takes a combination of software and hardware to achieve the results Apple gets. Apple owns both the hardware and software development so they can do things no other PC OEM can do because of their business model.
That's why Microsoft and Google are desperately trying to do the business model that Apple has mastered. I'm still trying to figure out what took people so long to figure out that is what enables Apple to do what they do. Apple has a built in advantage over others. That strive to "control" everything and every component that goes into making their products is the reason why they can put out devices with amazing battery life at impossibly small sizes, trackpads that the competition still can't match, a smooth transition to 64 bit mobile devices long before anyone else could pull it off and without people even realizing it was happening, and the sheer power of Final Cut Pro X on the new Mac Pro.
It's all about designing your hardware to match your software and vice versa. Something only Apple can do.