Honestly? I think Cave Story is one of those games you'll play, beat, and never play again. I just found it fun the first time but I have no reason to go back to it. In my opinion has loads of replay value and I never really get tired of it.
fair but a reason to replay it is it has a active modding community like Spelunky but cave story has 3 endings but i think we can agree the sound track on cave stoy is epic but anyhow i started this poll to see others opinion but ima put this on cave story.org too and add the votes