We've seen it before. Remember when the Radeon cards like the R9 290 were being gobbled up by bitcoin, litecoin, whatevercoin miners? I literally bought mine brand new for $420 and sold it several weeks later on Ebay for $510. At that same time they were well over $510 on Newegg.
So we've all seen the leaked Ryzen prices. Those are supposed to be MSRP prices. What is Newegg, etc actually going to be charging, and how much over MSRP are you willing to pay?