I'm not really sure to be honest, we've been buying the lights for years so it gradually grew. We also get a lot of them on clearance right after christmas. So I honestly don't really know. And like the other stuff like Stars that blink, and Snowflakes, ect, we built so I'm not really sure. I'm sure Disney can't be paying that much for the lights, because you can get them in bulk for pretty cheap I'm sure. The LED lights last really long, and they also sell industrial strength LED lights. I know a lot of people are saying Disney must be replacing lights yearly, but we've had most of the sets of lights for 3-4 years. We start putting up the lights early November, like right after Halloween, but we don't start running them till Thanksgiving. So not sure if it's the one less month that's saving our lights. But I think saying Disney was replacing tons of sets every year is being dramatic.