The company doesn't pay full MSRP on any "stock" parts. It is possible that something unique such as Dura Ace or SRAM Red would be different, but I'd imagine they still get the discounts.
Keep in mind that the mail order companies try to undercut MSRP. So, see something mail order for $100, and it may well be $150 MSRP (unless there is a MAP agreement).
Many of the parts suppliers have been fighting overseas companies undercutting their prices.