I planning on buying a pneumatic as soon as somebody invents an electric-powered device that costs $300 or less to pump them up to over 3000psi. Until then, I'll stick with springers.
I have been shooting a B21/22 for over 7 years now. It's a springer - Chinese copy of the RWS 48 side-cocker. Very well made, and I consider it better than the RWS because the trigger is a true 2-stage adjustable trigger made of all forged steel parts. Someone should figure out how to marry-up the B21's trigger to the RWS 48. If this could be done, then I'd consider purchasing an RWS 48 and another Chinese B21 just for the trigger parts.