Reason for having more than one holster
There are always preferred ways of carrying a concealed firearm or even a duty gun, but in certain environments you’re holsters may not hold up very well. I’ve seen nylon holsters survice in situations where leather didn’t, but i have and own many very comfortable leather tactical and concealed carry holsters. I don’t think the notion of wearing a kydex shoulder holster is appealing to me, but something like the Blackhawk Serpa holsters are more secure than a clip on nylon.
There are always trade offs with guns and the same goes for the gear that you are carrying, In this part of the country it’s impossible to expect to carry a paddle holster or Blackhawk holsters like the Serpa in the outside of your pants when it gets hot up here. If you want concealed carry you better expect to carry IWB or pocket carry. I’ve moved away from paddle holsters because you really feel it if you have to hit the ground hard. There are always options.