Do you think is $1,000 fair price for selling all rights to buyer?

Depends on how much you make on the image.  I might sell an image that makes $50 a year for that but would keep one that was making $200.

Thanks for respond sharpshot. 

If it was making $50 a year then you could price it at $1000, but nobody would pay that. They'd be twenty years in before they'd make any kind of return... and at that point, the clip might not be desirable or have any commercial value... especially if 16K is the norm and yours is HD.

I'd say two years of projected sales at a minimum. Four or five at a very maximum. It's unlikley people would want to pay for five years though. That's if you could do with the money though... if you feel the clip has longevity and you're not short of cash, then you may as well hold onto it.

I think a lot of people on here overvalued their work slightly. So the people that have 10,000 images in their portfolio... you're seriously saying that their portfolio is worth $10m?

And as for how would it cost to hire somebody? Well if it's just one image then probably a lot less than $1000. What would you charge for a wedding and 100 photos... $100,000?

the question is not how much it would cost them to hire someone to duplicate the image but price they might pay for a similar image from someone else