Honestly, if you go back and look at reviews, the same thing has been said for every previous generation. The only difference is now, the price gap is bigger ($399 vs $599 instead of the old $399 vs $499).As op states, no real benefit over the iPad Air 2.
I like a new product just as well as the next user, but OPS point is valid, and I don't think he was speaking for every user out there.
I expect the market will dictate what pricing is acceptable. If demand for the Pro 9.7 is much lower than expected, we'll likely see some discounts in a couple of months like there are for the iPP 12.9.