Yeah, those Verge numbers are bullshit. And all of those sellers currently selling over MSRP...they've raised their prices on those listings recently. Do you know what a cashout buyer for scalpers is? Go find a single one who has listed a cashout price for Xbox Series S. They don't exist. PS5, Series X, OLED Switches...they buy PS4s, FFS. Go back just a week or two through the sold listings and you will see tons of them being sold for $330-375. Those might be wannabe "scalpers" selling a unit or two, but they're not your typical scalper who buys up all of the other consoles. Even selling the S at 400 with free shipping would be a complete waste of time after fees, shipping, sales tax, etc. Those are inexperienced sellers who are breaking even or losing money on those.
The most I'll grant here is that the Xbox Series S has recently gotten too difficult to find at retail for people who aren't used to chasing in demand items. I'd be willing to bet that I can still purchase twenty inside of a week at retail without leaving my house, though.