Well Darma, just like with anything else, you get what you pay for. D. Quackenbush makes these rifles by hand, by himself. 600 is a VERY reasonable price when there are 3K dollar production air rifles out there. These are not the most powerful, they are usually the most accurate or the ultimate in quality (think....the Bentley of air rifles). My airgun is a .25 that I paid 450 for because it had a few cosmetic flaws, it sells for 600 today. Like I stated already, I dispatched a 60lb beaver at 35 yards instantly. I've killed several beaver with it at various distances. None got away. And unlike a firearm, I can turn down the power from full power to so little the pellet won't leave the barrel, so I can tailor it to the game I'm hunting. No need for 80+ ft lb energy shots (that use more air) when hunting ground squirrel or rabbits. Turning it down to half power is plenty for them. Hunting a larger animal such as a raccoon, opossum, beaver, nutria etc? Crank it up!
Try to do THAT with a firearm!
Winchester speaks of not having margin for error with airguns. Well, once proficient with one, you don't need to worry about that. A modern airgun, in the right hands, can shoot sub-dime sized groups out to 50 yards +. These are under ideal conditions, but it shows the accuracy of modern air rifles. Even my old Benjamin .22 will consistently knock standing quarters off of a 2x4 at 20 yards. And that gun is 60+ years old. I wouldn't hunt game larger than a ground squirrel with it, however.
These modern air rifles have tremendous knock down power in close. But the beauty of an airgun is that out much past 100 yards they quickly lose power. Missing a deer with an airgun is basically zero risk to anyone behind it. Missing with a .270 can kill hundreds and hundreds of yards past the target, out to a half mile +. Nobody is going to attempt to kill a large animal with an airgun past 50 yards. Out past 30 is honestly pushing it unless the conditions are perfect. That shot on that beaver was at the end of my comfort range, and he died instantly, rolling motionless into the water and floating there until he was eaten by turtles. (he was up on an embankment). Obviously my gun is dangerous out past that distance. I know at 20 yards it almost shot through a 2x4, blowing a huge chunk of wood out of the back and deforming the projectile so badly it didn't even resemble a pellet.
It's really quite sad how ignorant some people are, hopefully until they get some first hand experience from these compressed air monsters. When an airgun can shoot through a cinder block, that is no longer a "pellet rifle." That is a hunting weapon.
"Police protection" is an oxymoron. Gun laws are like masturbation, they both feel really good, but after you're done you realize you haven't accomplished anything."