When I'm carrying my G19 it's in a OWB leather holster from Ray's that cost all of $35.00, I'm pretty sure.
It's good, holds the pistol flat against my kidney, holds upside down, is quick to draw from and easy to reholster. Even looks good.
I have an IWB for a Commander, also leather, that has no reinforcing around the mouth so it tends to go flat, but I use it in a crossdraw position and can see it to reholster so it does the job. That one was $35.00.
Delivered in about one week (!).
Need I say that I like Ray's?