We never get any kids either. Our road isn't a good trick-or-treating road. The houses are far apart and all back from the road. We always buy a very small bag of candy (something we like) just incase a kid stops by.

My parents, like Medusa, can easily spend a lot of money on candy and still run out. They live in a popular housing development where a lot of kids live. On top of that a lot of kids are literally trucked in. It's really a lot of fun, It's like a neighborhood party. Everyone was/is always really well behaved and there was never any trouble.