I used to own/run a popular Nintendo forum, and let me say that the experience itself is amazing. I built the site from the ground up because I've always been fascinated with the world of Nintendo, and always wanted to run a site. That said, if you plan to run a site by yourself, you're going to be in for a surprise-- It's not that easy. You need to deal with staffing, you need to deal with members, you need to deal with updates and many wonderful things that would easily be done with the help of other people.