I'm playing the PSP version (complete collection one) of FFIV.

I am quite far through, so I am obviously gonna see it through to the end.

But after I'm done, I was considering playing the original SNES version. Would it be worth it? As in, would it be much different from this psp version? Or do you think I should just move on after the psp version?

Is the gameplay different? Or is it just mostly graphics alone that are different?