It's a guy thing, really. Most of the time, women aren't interested in vehicles for points other than transportation.
I like cars and car models because of the visceral feeling of the car, especially when you build something yourself, like our Ranger. I saw it nearly completely apart and now it's running again... It's so cool that all these pieces of metal come together to make a fast, loud, nearly breathing machine.
I, too, love this forum. It's a nice escape, and a good place to show my skills off, give tips, and get advice on how to make a better product, which is what I'm working towards.