I carry one of my NAA Minis , a lot. Purely because they are a very compact carry gun and I can carry it IWB in nearly any clothing. I usually carry one as a backup but sometimes a primary.
I've carried guns like my Birdshead Vaquero .45 ACP in an IWB holster , and others but it's not very often.
I started keeping the "cool" guns on the range and carrying my Glock .380 and 2 spare mags with much less bulk, weight, and more rounds if needed. It's a tool, it's job is to fire bullets if I ever need to protect myself with it. I'm not a Glock-o-phile but I know it will work , it doesn't need a lot of maintenance and it's lived in the Don Hume leather IWB holster I've had it in for probably 5 years now. If I need it , it will fire. 2 things sold me on Glocks.....first was my time as a Nuke plant guard, where we carried Glock 22 .40's and they always worked. Mags were constantly kept loaded, and they always worked for the annual qual. They received no maintenance, they were carried in all kinds of weather and only fired once per year.
2, was the Iraqi police I saw with Glock 19's, and they turned them in to us at the FOB gate to come in and the guns were brown with caked on dust and sand. they never cleaned them. We would hear them using them to shoot feral dogs all night so they definitely worked. I have no affection or bond with my Glock carry gun and it's probably better that way. When I carry a favorite Ruger I catch myself "protecting" it from getting banged on stuff, getting sweated on, and all that. The Glock will just have to take whatever daily carry dishes out. I don't worry about it, at all.