always been a base iPad user, only this year i got me a Pro when we got some extra money and the battery on my base model from 2018 started to show it's first signs of aging.
for my use case, only the base iPad has a good price to "performance" ratio, the others are and were too expensive for my kind of usage as a complementary device.
the base also has the best battery life of all of them and also the best form to be comfortably be held in your my hands
my next model, should the batteries of my current two go bad, will be a base again. no real use for the others