Mickey's Not so Scary Halloween

[Goofy'sPal]

Hi Im 29m single, soon to bee 30 and have a question. Starting to be in planing stages of my next Walt Disney World Vacation and stuck between another May vacation or an October vacation. Does MNSSH make sense for a 30yr old single male or would I feel too old, weird being there by my self? Whats it like, is it really basically trick or treating for an extra $62? Can someone please clear this up and give better explanation of MNSSH to me. If so it would be greatly appreciated.
Also another question about October. Since the sun sets earlier do the parks close earlier? When I last went on vacation it was in May and I remember staying out in the parks pretty late especially Magic Kingdom.