Oh, and this thread is accurate in that the current shortages were the final straw on restarting reloading and adding auto calibers and .223. However, I was going to anyway, this just sped it up.
For revolver calibers I wanted to restart just because they are all so expensive now if you want to do a lot of shooting. For auto calibers, I was planning to eventually start reloading for either 9mm or .45ACP because once I started shooting more again, I started thinking about getting into one of the shooting competitions once I finish my masters degree this summer (and thus had more free time). Reloading would make the amount of practice needed for competition more affordable, and it could be better quality ammo.