SHTF; also just for fun.
I bought a Saiga .223, but only because it was incredibly cheap ($270). If I hadn't seen that price tag, I would not have purchased. I have other rifles (rimfire), and have never been paranoid enough to stock up on stuff against a SHTF possibility, but at that price, a "just in case" centerfire became a "why not?"
Now that I have it, I've gained a great deal of appreciation for the genius of the AK design. Since it's so cheap and ugly, I've also felt free to do some tinkering to it.
Many hundreds of rounds, and never a hiccup. Pull the trigger, and it shoots -- always.