Windows RT tablets didn't do well because they were too slow and too expensive. They were basically pitched as full computers, but the chips were too slow for t

Windows RT tablets didn't do well because they were too slow and too expensive. They were basically pitched as full computers, but the chips were too slow for that. The Surface Pro was only a bit more expensive, and offered much better performance. But performance of ARM is rapidly improving, to the point where it will soon be sufficient. And Chromebooks have always been available in x86. It's easier for notebook manufacturers to convert low-end windows notebooks to Chrome OS than to design ARM-based systems from the ground up. From what I understand, ARM Chromebooks have sold pretty well.