We did that about 10 years ago. We get new devices every 5 years. We had issues with a docked laptop in classrooms and went back to a Desktop and a Chromebook for every teacher the last purchase round. The reason is that when a teacher was sick or gone, there was not a device on the teacher's desk for a Sub to use to teach. It was a huge issue as most teachers rely on Slides, videos, and other display tools even when a sub is teaching. Without a computer, all that has to be "old school". Our staff is much happier with a good Chromebook and a desktop (we use those micro desktops that are super fast and small). It was a great compromise for the past 5 years, and our next purchase is for next year with the same setup, a small desktop, and a mobile Chromebook.