It costs about the same as the current generation, premium .40 S&W stuff. The savings is not in the carry ammo, but in the practice ammo--but, if you can afford to pay .75 cents a round for practice ammo (and burn a couple hundred rounds a month), it's pretty much a wash.
There's really no measurable difference in effectiveness between the two calibres with current generation premium JHPs. The development of common performance standard has pretty well leveled the playing field.
The 9x19 will give you a slight capacity advantage (at least if you live in a free state).
The 9x19 will always give slightly faster follow-ups (despite protestations to the contrary) given similar experience/practice levels, platforms and ammo types.
There's more to the equation than cost.
There's really no measurable difference in effectiveness between the two calibres with current generation premium JHPs. The development of common performance standard has pretty well leveled the playing field.
The 9x19 will give you a slight capacity advantage (at least if you live in a free state).
The 9x19 will always give slightly faster follow-ups (despite protestations to the contrary) given similar experience/practice levels, platforms and ammo types.
There's more to the equation than cost.