Four years ago I was looking for a second plane. I also wanted a bipe. I didn't know about RCU at the time and my "club" was the field behind a rural school. I spent a year teaching myself all that I could with a Telemaster 40 while working on a Balsa USA EAA Bipe kit. The EAA in my mind was a great second plane because that's what I wanted to learn to fly at the time and it seemed like a reasonable progression. The plane is still together and flying as well as it did on day one. A kit-built bipe makes for a very durable airplane.

Most of what has been said here is true, however, I tend to agree with Bill. If you want your second plane to be a biplane, then make it so. If you're well trained, the short tail moment, orientation confusion, and generally higher landing speeds will do nothing more than make you a more proficient pilot. In fact, you'll even learn to use the rudder!

It's a hobby...make it your own and persue the airframe types that appeal to you.