This information is directly submitted by the Microsoft. In a press conference at Gamescom 2017 some time ago, Microsoft claims if the order or pre order Xbox One X run very fast.
"In just a few days, we saw a record of selling fast and currently sold out in any country," said Microsoft Marketing VP Mike Nichols.
According to Nichols, pre order Xbox One X is faster than when the pre order tap is opened for Xbox One. Those eager to order Xbox One X were hooked after the announcement of the Xbox One X Project Scorpio Edition version.
Just for information, this edition presents a different design with the usual Xbox One X plus a support for vertical position.
Microsoft itself does not plan to add Scorpio Project Edition unit that he said had sold out. But the stock Xbox One X standard version continues to be added. In fact, Microsoft has decided to stop selling regular Xbox One and will focus on Xbox One S or Xbox One X.