You start out with one rifle or pistol, some ammo for them both, then you want more, another rifle, maybe another pistol, yup, more ammo. Then you think about a safe, you hear from long time shooters, buy a safe twice the size you think you need, words of wisdom to follow.
Now you have, range toys, hunting options, clay shooting options, you upgrade, barrels, triggers, fore ends, stocks, so may small parts that you need to organize by firearm, all along worrying if there is another ammo shortage, can you weather the storm, so you start stocking the calibers you need. First in the shipping cardboard cases it came in, then, plastic ammo cans, jeez, I should think long term storage, now the steel ammo cans start showing up, they get filled.
You have more toys to tinker with than time in the day, but! Man that new 1911 is so sweet and feels great in my hand, so, you rationalize you can buy just one more pistol, one more rifle, awe heck, one more shot gun.
When is enough, enough???