“I’ll just say it: I think I’m done with iPads. Why bother when Apple is now making a crackerjack Mac laptop that starts at just $600?”
I’m curious to see this machine in person, but I’d bet the an iPad is still the best large device in Apple’s ecosystem for anything that benefits from viewing in portrait mode.
Portrait or landscape - if your use is dominated by looking at the screen and/or situations where it can't set it down (to use the KB), then the iPad is better.
Assuming the software you need supports iPad, etc.