Yeah, RA has many fulfillment points in the US, so depending on where it's coming from and what the freight rates are like in that area the cost can swing pretty dramatically. Also, like Dante said, if you can consolidate items in your cart to one ship point you can save quite a bit in shipping.....sometimes that means swapping brands based on what items are shipping from where.
I ordered a door lock actuator assembly earlier this week...Anything local was $200+ and the dealer was $350. RA was $60 + $24 shipping from Sugarland Tx.