Ну как не потрогаем в магазине, так хоть в интернетах помечтаем.
http://arstechnica.com/gadgets/2016/06/the-xps-13-de-dell-continues-to-build-a-reliable-linux-lineage/
The latest XPS 13 DE comes in a few pre-built configurations with variations in RAM, hard drive size, and screen type. At the low end there's an $1,100 option that ships with a Core i5, 8GB of RAM, 256GB PCIe SSD, and a 1920x1080 display with the Intel HD Graphics 520 card. At the high end you get a Core i7-6560U, 16GB of RAM, 1 TB SSD, and Dell's QHD+ (3200x1800) InfinityEdge touch display with an Intel Iris 540 graphics card. All that will set you back $2,500.
If you do wish to use a different flavor of Ubuntu, Dell recommends installing it via the Software Center (or apt-get) rather than starting from scratch. That way the extra Dell PPAs are still there. It's also possible to install other distros, but in my experience this is hit or miss. Mint 17.3 with Cinnamon worked pretty well after I added the Dell PPAs by hand. Arch most likely works perfectly. Fedora seems to work except for the microphone. Debian testing on the other hand was rough—rough enough that I went back to Ubuntu. You can see some helpful bios update advice on Barton George's site. Suffice to say that you can get other distros working, but you may lose some of the «just works» aspect you're paying for.