The differences between the Pro and non-Pro 9.7" iPads are _way_ too inconspicuous for that argument to hold water.
In fact, the only product apple sells that seems to follow that line of reasoning is the Apple Watch.
In fact, the only product apple sells that seems to follow that line of reasoning is the Apple Watch.
The lower tier, same-sized items are basically "you couldn't afford an X" models that allow them to monetize a different market.
But the idea is to keep the mystique of the higher tier items as a status symbol. And exposing the specs and highlighting precise differences only leads to people deciding that maybe that feature isn't important to them...