I felt that sadness this year, too, that I had deprived my own kids of a tradition that is so much fun. I think my grandkids and I have more fun getting ready than actually going out - creating costumes, deciding who we want to be, etc. Most people in my neighbourhood don't participate, but there is a nearby community that has adopted Halloween - every single house is decorated and pretty much all of them answer their doors. Lots of them do fun stuff like ask the kids extra questions or do something a bit scary. It's really neat.
Unfortunately I had to work this year and couldn't go along, plus it was really cold, but the kids went down a couple blocks and had their bags half full of candy so they were happy.