I do not think it will go down. But i do have to say i am afraid that there will be more balls for sale then those actually buying, also the prices will go down which is good for owners who want a pretty snake with a good price, but bad for those selling and making a profit.
But no, it wont go down.
I am also suspecting this will happen... as i said above, plenty people still buy corns, but a lot of people still re-home or stop breeding their corns because they can't sell them well. :/ it's too bad!