What is the benefit of a certificate of copyright registration?
It looks good on your wall, it makes you feel good that the government has recognized your photographic skills, and it would be the starting evidence for a court case for copyright infringement.
“In any judicial proceedings the certificate of a registration made before or within five years after first publication of the work shall constitute prima facie evidence of the validity of the copyright and of the facts stated in the certificate.”
— 17 USC §410