Anwering to the OPs thread title, yeah, I think the base iPad may be overlooked, and it’s the device that holds the best value, by far.
Ok, until now, an iPad with an A9 or A10 might be a bit meh regarding powerhouse. But as soon as Apple started to use the A12 it had more than enough power to do almost everything a regular user might need. And the A13 is even more powerful.
Look, I am an 11” iPad Pro user, and back in 2019 the new iPad Pro had a pretty big wow factor. And that -and pro-motion- was the reason I bought it. Also the powerful A12X. But if I had to buy my personal iPad now in 2021, I would seriously consider the 9th gen iPad. Because it is a terrific device and with the use of face masks, it is difficult to unlock my iPad on public places where I use it.
The iPad Air is a good device as well, but it is a bit expensive to be honest, and if I’m gonna spend 650€ on an Air, I’d rather spend 150€ more towards an iPad Pro. But the 9th gen iPad? It’s a great deal!