I saw this too, and I'm not surprised really (well, maybe a bit surprised that they're literally being GIVEN away, but then again, people give away normal males too). Once it becomes more and more obvious that desert females are a no-go breeding wise, I think their value will definitely keep going down across the board.

I think the price of desert males will be relatively stable because not only will people continue to breed for combos (with the hope they get some males out of it), but with females rendered useless for those purposes, male desert and desert combos will be even more in demand.