I still think it could change. Those who would probably "win" anyway might stop or at least pay less as the novelty wears off.
I think the biggest effect will come from dolphins and minnows promoting for less, which will drive down the upper-value required by the "big-shots".
There is of course the chance that the "big-shots" won't adjust and the upper value remains, effectively pricing out dolphins and especially minnows. I think this was your point, and I'm worried too.