Sadly, I'm quite cynical when it comes to these types of supply and demand questions. I remain convinced that (in normal, non-Covid, times) the manufacturers intentionally cut off the supply in order to get their prices (profit) up beyond the normal inflation factor. For example (and only ONE example) consider the fake shortage of .22 rimfire ammo a few years ago. They kept the supply 'off' for how many years? And then when a brick of .22's reached more than double the Walmart price (which was $14), the supply chain of 22's became instantaneously flooded. Primers will go from whatever they were before they shut them off to what I foresee at $40 - $50 per 1000. I have no more knowledge than the next guy, but let's figure on a 4 year dearth +/- Covid 19.
IMHO of course,
J.