I bought my 1st pin about 20 years ago. I never thought about owning more than one until about 3 years ago doing a search on the internet I found out that there are a lot of people that own more than 1. Once I started thinking about owning more than 1 I started buying more and I'm up to 8 now. I ran into a friend a couple of years ago that I hadn't seen since high school. He was the same way. He had 1 pin he bought a long time ago and never thought about owning more. Then he saw my collection and now he has 4. I think a lot of people just never thought about buying a bunch of pins until they happen to stumble across someone that has them or a site like Pinside and then realize what a great hobby it is. And now the word is spreading fast and more and more people are getting into it. And people like Clay make it possible as they teach everyone how to repair their games. Also parts are much more available then they used to be. It is much easier to own and maintain a pin than it was 5 or 10 years ago.