One of the great advantages of .22 pistols is that they are obviously less expensive to shoot. After a time period when .22 LR ammo was difficult to find, it is now available again.
If I am remembering correctly, my second automatic pistol and my first centerfire was a Browning High-Power. Around the same time, I also acquired my first centerfire revolver, a Colt Official Police. I didn’t reload at that time, so found the cost of 9mm and .38 Special ammo limited me to firing the very occasional box of ammo through each. I still shot my Woodsman the most because I could buy a lot more rounds of .22-Long Rifle ammo for the same amount of cash.