I used to upgrade my iPad every cycle, but the prices are now approaching laptop range, and I don't upgrade my laptop every year. So I maxed out a 2021 12.9, and won't be upgrading every year anymore, unless something exceptional comes out. No more incrementals.
Why did you upgrade that often? I have an iPad Air and a 2018 Pro 12.9. I still use the Air.
Buy a machine and use it. Buying every year is nuts.