Spring and other parts availability is also a big deterrent for me. These days I am mostly out of the shooting and collecting game so I actively working to cull my collection to a small number of self defense, target and hunting guns. That said I had a .380 HSc 30 years ago and it was a nice little gun. There is no denying the utility of modern pistols but there is an intangible to things like the HSc, the Beretta 1951, and some of the other weapons of yesteryear.