This argument doesn't make any sense - those lists don't shy away from including other higher priced options.

Said Dell display is $2,479.99 before any discount.

The XDR is included on every one of those lists, with the same resolution/size, but $4999 (more than double the price) without a stand of any kind.

The Apple Studio display is $1999 (just $500 cheaper) if you want the height adjustable stand.