If I came across a .45, I would get it funds allowing.
I have the 9mm full size and the 9mm Sub Compact they are nice pistols. I have the SC up for sale but I'm thinking of keeping it. I seem to carry the full size more then the SC.
The DA/SA hammer fired guns, just aren't whats in demand now. Beretta came has a type "C" model (constant action trigger) with a smooth slide and a DAO model as well. But you don't see them as much, and I don't know if they have the "C" model in .45. I'm not sure which company came out with the different size back straps but the PX4 has to be one of the first. Now most come with that standard, but Beretta was in front of the pack. It's also a very modular system, the whole hammer group can be swapped out. If wanted to I could make my type F into a C but it would still have the decocker on the slide.