Looking at competitors:
Acura
Audi
BMW
Infiniti
Land Rover
Lexus
Mercedes
With the exception of Infiniti, every luxury SUV/CUV priced at $40,000 or higher has AWD standard.
For luxury SUVs/CUVs under $40,000 (and for Infiniti) adding the AWD option costs about $1,400 - $3,100.
The Model X is...