Wubba lubba dub dub!!
has the Rick and Morty: Season 1 Blu-Ray on sale for $13. Shipping is free with Prime.
Best Buy [bestbuy.com]
also has it for the same price with free shipping or in-store pickup.
Not a historic low, but lower than recent sales.
A note about Ultraviolet: This pressing does not include the UV code! The original pressing of this set included a digital copy, but subsequent pressings have not. There is no current supply of Blu-Ray + Digital Copy versions of this release. The digital version is available via Vudu, and with a Hulu subscription. I have been waiting for a re-release, but at this point that doesn't appear likely.