very close to msrp from third party seller "Storemaster"

https://smile.amazon.com/AMD-Ryzen-3900X-24-Thread-Processor/dp/B07SXMZLP9/ref=sr_1_1?keywords=3900x&qid=1570728709&sr=8-1

It’s here, but not in stock. https://www.amazon.com/dp/B07SXMZLP9

Well at least the 3900x is in stock

https://www.amazon.com/dp/B07SXMZLP9/

All Amazon Links:

Ryzen 9 3900x

Ryzen 7 3800x

Ryzen 7 3700x

Ryzen 5 3600x

Ryzen 5 3600

Ryzen 3 3200G

You can do a firmware upgrade then drop in a 3900X.

https://www.amazon.com/AMD-Ryzen-3900X-24-Thread-Processor/dp/B07SXMZLP9