I saw the videos of all the past parades. No big deal to miss. They change the lighting on at least Main St. and a few other places, adding projected moving halloween images and different music is broadcast.
Pooh and characters in their Halloween costumes. Eh. You see a picture, you get the idea.
They dole out candy. I buy my own favorite candy anyway.
If you're really into dressing up for halloween, you'd have a good time.
I would have felt funny going and not dressing up.
If I had the same time there, the fireworks show for the party seems to be the one thing worth going for.
We are always at whatever park at opening in the AM, so the extra hours aren't such a big deal. If I was more confident of really short lines on attractions for the party, I would consider it further.
I have read here that they keep selling more and more tickets each year, so yeah, it's "limited" attendance, but there are a lot of Halloween junkies out there and this thing is getting more popular every year.
I would save the money and book now for Ohana dinner for the same time as the fireworks. They play the music in the restaurant for the show at the same time. We were sitting in the back corner far away from the windows and could still see the fireworks. You can always walk closer to the windows like everybody else does, being careful not to obstruct anyones's view. People seem to be friendly when it comes to that for the brief time of the show.
If not that, I'd plan around being on the Poly beach at the area where they send the music as well at the same time, especially since you're adults.
If money weren't an object and I did have more time, yes, I'd do it. I'm not that much of a curmudgeon, yet.
Also, have you been to WDW in the past year? If not, I'd focus my time more on other things that don't cost the extra $, but are still worth seeing, including Downtown Disney and walking around the resorts, which are attractions by themselves, if you are the type to stay up/out late past any park closing time.
Don't worry, the Halloween party isn't going anywhere and I think will only get better as the years go on.