I had 200 trick or treater's last year on Halloween at my house. 60 more than I ever had before. Luckily I had enough candy, buying for 220 this year.
No baloney, my mother in law gets over 1000 trick or treaters every year, they bring the kids to her subdivision in trucks and trailers. The police block off the streets.
She makes 750 bags of candy for the kiddies and then has to give loose candy once the bags are gone.
We and friends go by her house every year and bring bags of loose candies so she'll have enough to give out.