I am with the OP, I prefer pumpers over springers and PCP for sheer simplicity of use and overall weight savings. I have had an old Silver Streak that is my go to hunting air rifle, it's compact, light and more than enough gun for tree rats. I have had many others over the years but they are gone now. The SS is all I really need, the 14 grain .20 caliber pellet moving at 625fps is a great small game round, and I like that I don't need to think about the way I hold it when I use it, just mount it, aim, and fire. A few ounces of pellets in my pocket is all I need for a great day of hunting.
Same here- I have the Blue Streak, and have had it for 22 years, it has put down plenty of brown things with teeth, mainly rabbits, but a good mix of squirrels, and a few groundhogs (with Beeman Crow Magnums). Great lil popgun that doesn't need a scuba tank to make respectable killing velocity.