Do customers ever request to buy-out the copyright to an image?
It is very rare. Your image cannot actually be “sold” unless you transfer ownership of your copyright to the buyer. It is unlikely that a customer will choose to purchase the image outright because the fee is relatively high. But in the rare case of a buy-out, we would need to seek your approval to agree to the transfer of your copyright, and you would also need to agree on the fee charged for giving up ownership of the image. Of course, it is your prerogative to decline any copyright buy-out as well.