When you load for 60+ rifle, shotgun and pistol, starting at the 204 Ruger and ending at the 470 Nitro Express or the 22 Hornet and ending at the 50-70 depending how you define smallest and biggest, I've got a bunch of different powders.
Plus a bunch that I inherited or bought at garage sales cheeep. Found a use for all of them, may not be the ideal use but they all go bang and for non-competition fun shooting that's all I need. More money for the important things in life--beer, more reloading tools/molds/tools in general/iceboat stuff.
Was given an unopened can of 5066 this summer, apparently 60 years it was the cat's meow in handgun loads. It's all good, even if you have to dig a little bit for load data.