Here's why you can't buy a high-end graphics card at Best Buy | Ars Technica
Hundreds of NVIDIA's Workstation-Aimed Quadro RTX A4000 Cards Ending Up In Crypto Mining Rigs
Amazon.com: Kingwin Bitcoin Miner Rig Case W/ 6, or 8 GPU Mining Stackable Frame Expert Crypto Mining Rack W/ Placement for Motherboard – Air Convection to Improve GPU Cryptocurrency Test Bench PC