I really hope that better "Unix with good UI" laptops will exist in the future. Right now, I'd rather buy a 2015 MBP than any of those "Dev Edition" machines.
Over a decade of crawling on its belly at the bottom end of the market has really taken a toll on PC hardware and the whole PC ecosystem. The bundling of actual malware with PCs marks what I think is the low point. Dell's XPS machines are starting to climb out of that hole, but it'll take some resolve.