I don't want to get this thread too off track, but the break barrel guns are never going to produce the velocities you see on the advertisements. These are tested with ridiculously light pellets for caliber to produce those velocities. Nor would you actually want them to. A diabolo style pellet becomes very unstable past around 950fps (this varies based on the pellet design, but supersonic is universally regarded as terrible for pellet accuracy). A super light pellet moving at 1,250 fps will very often A. not shoot worth a hill of beans, and B. carry energy downrange about as well as if it were made of Styrofoam.
A more reasonable range for these guns shooting lead hunting pellets is probably in the 650-900 fps range depending on the pellet weight. I wouldn't try to shoot really heavy pellets or "slugs" from these as they likely will not stabilize/shoot well and there just isnt' enough volume of air to generate the velocity you would need to hunt with them. i.e. a 21 grain .22 pellet might only make 550fps out of a gun like that, whereas even a cheap PCP will likely push it 150-250fps faster. So for the price of that gun you are topping out at around 24 ft-lbs, which is nothing to snuff at, and they are consistent, accurate guns, but you cannot modify them to do more than they are designed for. And yes, dieseling them intentionally does boost their power, but at the cost of destroying the gun and I think no one would ever recommend that.
My vote was for the equivalently priced, bolt action 30+ft-lb Diana PCP with a 12 shot magazine which will produce the same level of accuracy, with the only disadvantage being the recharge of the air reservoir. Plus you can put any scope you want on a PCP. A spring gun would test the warranty on a $1000 Leupold. I am not suggesting you should put a Leupold on there, but I think most of us have at least a few rifle scopes laying around gathering dust that could be added to a PCP with no additional cost, whereas a springer would need a special scope and decent glass for air rifles will add another $100+ to the gun anyway (About the price of a 4500psi hand pump).
Now, all that said, I think if you are fine with an air rifle which will have limited power and range, because you don't need it or they just want to shoot tin cans in the back yard, with the occasional rat, mole, or red squirrel, would I recommend a PCP? probably not. A CO2 air rifle has all the power necessary for head shots and even the small 12 gram cylinders will give many, many shots. You never need to pump them, you hardly ever need to maintain the seals because 950psi is hardly pushing the limits of o-ring technology. A break barrel will give you a little more of a boost in power over a CO2 gun, but at the cost of usability and ease of shootability, so it is a compromise.
I am just of the "Even if I don't need it now, I want something I can modify later to do more" So I am a big PCP fan. I will put up with recharging the reservoir so that I can just carry the gun afield and all I need to worry about is cranking the bolt and lining up my crosshairs.
now back to your regularly scheduled program.