Which I have learned the A15 in the newest Mini is a gimped version and not as fast as what is in the iPhone 13.iPad Mini 6 is also $399, and it features the A15 Bionic.
Decisions…
I have a new iPad Air 4 (A14) and a new iPad Mini (6th gen A15) and the Air is actually faster than the Mini using Benchmarks (Geekbench 5) in all categories (CPU single and multi and GPU).
The iPad Air 4th Gen 64GB was $349 from Walmart. I'll take that over a $399 iPad 10.9 any day.