If "all" this thing does is replace a 4K monitor for existing MacOS stuff, I would consider saving up to buy one. It would be nice to work in various locations

If "all" this thing does is replace a 4K monitor for existing MacOS stuff, I would consider saving up to buy one. It would be nice to work in various locations with the equivalent of a big 4K screen. I am unfortunately one of those people who really cannot work on a laptop screen, I need lots of real estate. (And laptops are ergonomically bad even if you don't mind the small screen) I actually currently have 3 4K monitor + keyboard workstations in various rooms in my house. (Office, living room, garage) because I like to work in various places depending on the weather, who else is home, etc.