Im looking at Xbox one X at the moment, I havnt even approached any as they are all around $700. they Are $690 new.
I don't think that you're example is very good at showing that people are asking for more than retail. You're quoting the lowest price on Pricespy and not the prices at which most people would buy them. The current price range for a new Xbox One X being $689 to $822.25 plus shipping where that applies.
So if most people pay above the lowest Pricespy price then your point is invalidated and you're just having a moan. You could then be thankful that you can buy a new one with a 15% discount if you spent $700 instead of $822.