I bought one last year that I returned. I have to say that your best bet is department stores. If you get the SKU number (not the model number, but the barcode number) they can usually type it in an locate it. Bloomingdales in NYC is notorious for having bags that they don't even know they have b/c their stockroom is about 7 floors above their area and they don't go there, someone brings them bags, so they have no idea what's going on.
I'd start with them.