"I too don't worry about the 'wear & tear' factor pertaining to my .22lr guns."
I think it would be almost impossible to wear out a .22. I shoot my .22s FAR more than most people do and never even had a part wear out, let alone the gun itself. People post all the time about having put 50,000 rounds through a given .22. I never kept track, but I have owned .22s that I probably did that with. That being said, very few people shoot that much.
So just for the sake of discussion, let's say you can shoot 75,000 rounds out of a .22 without any problem. I think that is a reasonable number by the way, if not a low number. You decide to buy a new one and only shoot hypervelocity ammo. And it increases the wear and tear on the gun. What does that mean, you only get 30,000 rounds out of it ?