Fads

I had never heard of a Silly Band before moving to North Cackalacky. Even gas stations advertise that silly bandz are in stock!
But every single child between the age of 3 and 18 is loaded up with Silly Bandz....And I'm wondering why?

When I was a kid what was the THING that everyone HAD TO HAVE?? Were they scrunchies? or comic cards? or pogs?  But why? How do these things occur? Just brilliant marketing? The right, popular girl in school has them and it causes a butterfly effect that sweeps the nation?

Well whatever it is---it IS. It is in these Silly Bandz. It was in the pogs of the 90's. What will it be in 10 years? Who or what will be the catalyst for that craze?