The dates for MNSSHP 2010 are not confirmed but these are the websites that list the tentative 2010 dates:
The dates that I posted in my reply to Ian were from the Associated content website.
________________________________________________________
From another website:
Looking at the September and October Park Hours it appears that Disney will offer Mickeys Not So Scary Halloween Party on the following dates as these are the days the Magic Kingdom is scheduled to close at 7 PM. MickeyUpdates.com is reporting that these are the potential dates:
September
3, 8, 14, 17, 21, 24, 28, 30
October
1, 3, 5, 7, 8, 11, 12, 14, 17, 19, 21, 22, 24, 26, 28, 29, 31
As always dates are subject to change and Disney has not made any official announcement as of this time.
_______________________________________________________
All Ears is reporting the following:
WHAT IS IT? Mickey's Not-So-Scary Halloween Party allows guests to trick-or-treat while immersed in the fantasy of the Magic Kingdom. The evening includes Mickey's "Boo-to-You" Halloween Parade; trick-or-treating throughout the Magic Kingdom at numerous locations; and the special Happy HalloWishes fireworks. Lots of characters are out in the park, wearing their favorite costumes -- you're encouraged to wear yours too. The party runs from 7 p.m. to midnight; Mickey's "Boo-to-You" Halloween Parade is at 8:15 and 10:30 p.m. with the Happy HalloWishes fireworks at 9:30 p.m.
2010 Dates
-- September 14, 18, 21, 23, 25, 28, 30
-- October 1, 3, 7, 8, 11, 12, 14, 17, 19, 21, 22, 24, 26, 28, 29, and 31
-- November 1
Prices for the party are as follows (all prices listed include tax):
Advance Purchase: $57.46 for adults 10 and older / $51.07 for ages 3-9 (Not available all dates)
Passholder and DVC Member Discounts: $53.20 / $46.81
(Not available December 7, 10 through 19) Day of Event (if still available): $63.85 /$57.46
Tickets for Mickey's Not So Scary Halloween Party on sale April 29, 2010!
_____________________________________________________________
I cannot remember when I purchased my tickets for the 2009 event. Like I said it is a great event. There were hardly any lines for the rides. DS & I rode the Dumbo ride twice without having to get back in line. Goofy's Barnstormer was a walk on. And, the lines to see Mickey and Minnie were very tolerable. And, the candy is endless. We were each given a bag but did not fill all three of them up which we could have easily done.
The bags are a good size.
And, the candy varied.