A new report from Jon Peddie claims that the current GPU shortage is the result of rampant buying of cards by scalpers and miners, along with severe price gouging by retailers. The report also correlates the insane price hike with the rise of ETH mining.
https://www.notebookcheck.net/Scathing-report-claims-that-miners-speculators-and-gougers-are-responsible-for-the-ongoing-GPU-shortage.612508.0.html