Dirt is Good

I've just discovered mountain biking...
While I've had a mountain bike for just over 3 years, it's mostly been a commuter. That is, when I've ever bothered to ride it. It's mostly been relegated to the third bike status, but about two weeks ago, out of nowhere, I decided I wanted to go ride trails. So I did, and it was damn fun. Even though I keep falling over I'm having the most fun I've had on a bike since I was a little kid. It really makes me wonder about: Should I get a better mountain bike? A 29'er? A single speed? What about cross, that looks like fun? Maybe I need a cross bike?

I'm going to need a bigger apartment...