I think that there is a terrific social aspect to pinball that you don't get by sitting in your house playing video games. The way we interact face to face is a lot different than how a lot of people interact online. At my first tournament, people introduced themselves and shook hands. Lots of compliments and positive words would exchange. Conversely, a lot of online communication during a game like Call of Duty can be negative.
Pinball is just one example of the fact that whatever you are into, there is a group of people out there who are really into it. It's important to find those people.