Yeah, I have one from Staples.Checked the Staples site and seems like no luck there -
Google Nexus 7 by ASUS, Android 4.2, 32GB, 4G Cellular | Staples?
Might be a case of phoning individual stores though and seeing if they still have any in stock. Or do a walk-in and see if they can track one down at another outlet with their inter-store computer system.
My usual 'go to' for electronics (Canada Computers) didn't have any listed, either.
Bon chance!