Getty got in touch with me asking to buy non-exclusive perpetual licenses for over 1000 of my photos at a high single digit USD price per photo. This would mean that I am allowed to keep selling these photos through other channels, however Getty is allowed to sell the photos through all their websites for eternity without ever having to pay me for it again.

Through a bit of back and forth, I was able to almost double their initial offer per asset. They always raise their offer by just a dollar or two at a time and I feel like they are still trying to low ball me, however when I don't respond to an email within a couple of days they get in touch to remind me of the offer that's on the table so they are definitely keen to seal the deal. My main problem is that I have absolutely no idea what a realistic price for a non-exclusive perpetual license would be, $15, $25, $50 per asset, I just don't know.

Hence, my question to you: Does anybody have prior experience with this sort of license and would be willing to share a ballpark figure of what you were able to negotiate?