When you can get a Daniels Defends for $1400, I think a PWS for $1900 is way too much. The other thing to me is the spare parts availability for piston systems is hit or miss. Had the piston systems come along 20 years ago, they would have done great, but the manufacturing process for DI AR's has been just about perfected and they are very reliable now days. I watched a video on youtube a couple weeks ago of a guy that fired his AR non stop until his Magpul handguards caught on fire. I think it was somewhere between 4-5 thousand rounds. Even here in Afghanistan the DI M-4's aren't jamming like the M-16A2's did 20 years ago during Desert Shield.