This is only the second time I have seen a price reduction on this receiver. Price history attached.
The like-new version is an Amazon Warehouse Deal for $448.20. *NLA*
The new version is available from Amazon as well as Prime eligible seller 'WORLD WIDE STEREO' for $498. Choosing the latter may show up with zero tax in eligible states.
Other stores like Best Buy, B&H Photo & Video etc. may also carry the reduced pricing.
This receiver has almost all the new technologies including Google Home based voice control.
Now also available from Newegg for $498 - $25 = $473 using the MasterPass Checkout coupon code MPBTS17 (Will not work via any other payment modes).
Once again, choosing seller 'WORLD WIDE STEREO' may show up with zero tax at checkout, in eligible states.