Doesn't seem like the experts got this one right. Do you own a gun?
Sounds like you are a douche. Do you own a clean stream? High end printers work better, but the average person couldn't afford it, and it's cheaper to just go buy a gun.
No your comments show you haven't done any research of plastic guns other than 1 youtube video. And I doubt the prices will come down. They will never be a common household use item.