It's decent from an economic standpoint, but it's still environmentally wasteful, and among people buying a $300 laptop, there's probably a decent number who would have a difficult time paying to replace it. Also, the actual hardware of laptops hasn't changed that quickly in a long time, and when compared to Windows (which runs on basically anything), and macOS (which officially runs on 7-8 year old devices, and can be patched to run on older ones), the ChromeOS update policy looks kind of silly to me. I'm writing this comment on a non-Chromebook laptop that was purchased in 2015 and still works perfectly fine; it's crazy to me that I would no longer be able to use it because of an arbitrary limit on software updates.