Fortunately, I have lots of WW for casting, lots and lots of powder, brass and gas checks. I have enough primers to last for a good while. When I see primers at double what they were a year or two ago, I cringe.
Casting is something I enjoy doing. I keep it simple, have a couple of LEE 10 lb. bottom pour pots to do my bullets and melt down WW material. Over the years, I scoured gun shows for powder and brass. I bought one fellow's entire gun collection and all the associated stuff, powder books etc. Scored 16 lbs. of one type, plus some others. Two or three years ago I had a dealer get me a bunch of 8mm gas checks, which were not to be found in stores, plus bought some .30 cal at gun shows.
It might be said I have a bit more components than I need, but I don't use the word need. I have lots of milsurp ammo, shotgun ammo, and .22lr and 17 hmr ammo. Guns galore. It is a big part of my life. I spend time nearly every day at my shop doing something connected to guns.
The high prices may or may not slow you down, but be sure to stay in the game.