Typing is subpar next to a Mac so by the time you put the case on it and are in similar size/weight class, for same/MORE money .. why bother with iPad ?
With a tablet you get more freedom, not every task needs a real keyboard and sometimes even if it does it's better not attached to the device in wrong orientation.
Of course, you can now multi window in iPadOS but the experience is awful enough that I don’t.
Why would I want to touch a computer when I’m at home when I can use my iPad? Computers aren’t relaxing or fun to use.
[citation needed]