There's a lot of overlap between your MacBook, iPad and phone. I sold my M1 12.9" iPP because I didn't really see a need for having all three. Even my MacBook and iPhone are used for basically the same things now. Admittedly, I did almost buy the same iPad again a few times since I sold it, but I have to keep reminding myself - what's the point? Would I then sell the MacBook and continue this cycle over and over again? Either device is going to give me the same value in my life either way, I'd just be pointlessly losing money on them by selling/buying them for my current dopamine fix. Unfortunately, I sort of talked myself out of a new iPad, but want a Vision Pro now. We'll see how that goes...
I know you already said you've listed it. You pretty much just have to look at what's more valuable to you, the iPad itself, or the $900+ you'd get from selling it.