Micro Center is now offering the 12C/24T AMD Ryzen 9 3900X processor at a highly discounted price of US$390. The offer is only valid for in-store purchases or pickups and is limited to one quantity per household. At this price, the Ryzen 9 3900X offers excellent value and great multi-core performance when compared to Intel's newly launched Core i7-10700K and the Core i9-10900K.
https://www.notebookcheck.net/AMD-Ryzen-9-3900X-drops-to-an-all-time-low-price-of-US-390-potentially-jeopardizing-both-the-Intel-Core-i7-10700K-and-the-Core-i9-10900K-sales.466184.0.html
Micro Centers are often in a higher sales tax zone of a city, so assume a high 10% sales tax. $390 + $39. Still, not bad.