Smart folks might have hedged as I did.
Still, it does seem unfair if market price drops immediately on folks who only expected to be buying at <31 cents. I did end up keeping some unlocked coins at 66 cents and am slightly underwater on those now. Perhaps a "price protected period" is in order.
My suggestion would be
----Set a date everyone must decide by (1 week from now - example July 7)
----Offer a more than usual LOCKED discount for these folks (already done, but not specified what %)
----Anyone who purchases in this 1 week window, gets the lowest daily average (high-low) bittrex price for the following week (Example July 7 - 14), with a floor of the June prices.