To greaser's point...
I'll sell the HK USP Compact 40 when 9mm and 45Acp ammo become widely available again. Until then, I'm only shooting enough of those calibers (9x19mm & 45Acp) to ensure our carry guns are still functioning properly (my wife carries a Glock 26NS and I carry a HK45CT).
We both have Ruger LCP's that we also EDC, but they suck to shoot so the lack of availability of 380Acp hasn't been a concern (yet).