Sub-elites don't always have their shoes paid for, but may be willing to spend that much money for the perceived benefit.
They have a 10mm drop which is near impossible to find in a racing shoe, so individuals with kinds of chronic achilles tendonitis would benefit.
Also, the higher stack reduces the shock of impact and would benefit serious older runners or masters runners.
Is it for everyone? Not at all. I'm a bit of all 3 of the above things, and this shoe is the most PERFECT SHOE IN THE WORLD for me. But not many. I wouldn't recommend it for most, and $250 is crazy expensive. Doesn't matter to me.
Hope that answers your question.