Keeping a spare of known quality is worthwhile when considering "worst case" scenarios. One is none, two is one, etc. Changing out a bolt head or buffer spring - not a big deal. However, not everyone can replace a barrel or other component that requires specialty tools - hence the need for "spares". If the situation becomes dire enough to run prices through the roof, I sure as Hell won't be thinking about selling off my means of defense for a few bucks.
I had five AKs and sold all but one when prices went north of 900 dollars back when “they weren’t going to import any more.”
You can take a guess on whether bought some back now that prices are back to about 5-600 (these are Yugos, Chinese, and one Czech underfolder).
Never sell your personal stuff, and I am not saying how many of those I have.