Any comments on the old 45?
45 is great.
But with twice the lead of a 9mm and more powder to push the huge bullet the a little slower.
So more lead, more powder, same primer. 9mm is the cheapest.
Now your 9mm can take three or more forms. All taking a .355 bullet
9X19 Nato, Luger or Parabellum Or what ever you want to call it.
357 Sig Same bullet a little more powder.
38 Super. same bullet longer case, semi rimmed.
If you like the 1911 then a 38 super would be cheap to shoot.