I've been shooting air rifles for five or six years. I started with a Diana 48 in .22 and just sold it about three months ago, it was a certified scope killer. My Diana 34 in .177 is a fun accurate little rifle. Since August I've been fooling with an AA TX200 in .177, after a spring kit and some trigger work it's showing promise. I've been shooting it at 50 yards a little, it's a humbling experience.
I also have some older 10M stuff, three FWB 300S's and FWB 601. I use them in 10M indoor benchrest fun matches during the winter months. The 300's are springers and the 601 is a single stroke pneumatic. The 601 is just dead on the shot, no movement, vibration, just a pop. It's so accurate it's almost boring to shoot. The 300's are my favorites though, almost as accurate as the SSP but a bit of a challenge to shoot. If you ever get a chance to shoot one of these rifles don't pass it up.
I don't see me ever crossing to the dark side, it's to easy to just grab a tin of pellets and a rifle and go shoot.