Be careful of the Yugo surplus brass stuff that's around now. Mildly corrosive, which isn't a problem but it's Berdan primed so you can't reload it, in a practical way, at any rate. About the same price as the Russian steel.
The expensive American stuff would be worth buying, I think, just to have the option to reload it later - assuming the brass isn’t launched into low-Earth orbit or outright mangled by an AK or SKS’s “enthusiastic” case ejection. A brass catcher for plinking and practice would be workable, but you can kiss that brass goodbye while shooting 3-Gun or somesuch.