If you have 1000 rounds of centerfire rifle ammo you fall into the comp shooter, survivalist, or jihadist category. I don't know anyone who falls in any of those categories.
Sorry, just MHO.
A fudd opinion, to be frank. There are a great many of us here who don't fit your three categories and have many thousands of centerfire rifle rounds on hand. Just because someone doesn't compete in matches doesn't mean they don't go through significant quantities of ammo.
Buy it cheap and stack it deep is the only doctrine that makes sense if you shoot more than a few hundred rounds annually. It's a consumable commodity that doesn't spoil and never decreases in price (falling
most of the way back down from huge banic spikes doesn't count as decreasing). I'll easily burn through 1,000 rounds of 5.56 in 2 or 3 range outings, which is inside of a month during the summer. If I didn't buy a case or two whenever I find it cheap, I'd have spent considerably more money. My last case of 5.56, American Eagle M855, was $308 shipped. Think you can go buy for that price right now? Good luck. Best you'll do ATM is probably $0.38/rd after tax and/or shipping, which means if me and a guy who lives by your proscription go out and burn a case, I was able to pay my phone bill with the money I saved by buying ahead of time at a better price and stocking plenty. And that doesn't even touch the scenario when a banic sends 5.56 up near or over $1/rd.
It's all about what you'll use. I keep quite a lot of 5.56, 7.62 NATO, 9x19, 10mm, .45 ACP and .22 LR because I shoot a ton of it. My big game rifles? 50-150 rounds per chambering. .44 mag? Maybe 300. Milsurp rifles and handguns? Some of them, like 7.62x54R I have quite a bit of, but most are 100-200 per chambering. Likewise with shotguns, where I have a pretty decent amount of 12 & 20 gauge, but only a few boxes of 10 ga, 16 ga and .410.
If you're one of those who only buys ammo on the way to (or at) the range, you are subject to a market where prices and availability can fluctuate wildly, and it can greatly impact your activity. I chose to
not have my shooting hobby dictated by market trends and politics.