Rather than talk about arbitraries and opinions I'm going to use myself as an example…
I'm a "computing professional" that has to support macOS, Windows, iOS and Android, basically a jack of all trades. So I need devices from "both sides" and when I see the new iPad mini I think fab… this is for me! That'll be perfect to kick my Samsung Galaxy Tab S5e out of my every day bag and I get a new iPad at the same time. Perfect thing for the perfect time. And then I see the 889€ price tag for the 256GB 5G version.
For me, form factor is important in this particular place however when I look at 889€ I need to consider I (well, my client that gave it to me as a Christmas present rather than *I*) bought a Samsung Galaxy Tab S7+ 256GB 5G for 50€ less and my S5e (everything is 128GB+ and LTE/5G) was less than half the price that's not particularly good value. So to put it lightly I thought "f*&# that s@#^!!" and did nothing.
So rather than say its too expensive I would probably say its low value comparatively to other things.
Don't get me wrong, the new iPad mini will kick the pants off of my S5e around the block and every way sideways but everything has its price.