Last week I got John Wick 2 and Prometheus when there was no discounts but the guy there he know I purchase from Amazon and knocked off $10 for the both of them so I bough them.
You will not be disappointed with prometheus. Even before the Movie starts (on the Main Menu) you will be startled by the PQ.
I watched this on again on bluray a couple weeks back and loved it this time around.
Maybe it's an upgrade if its in the 2 for $40 UHD sales that JB have jumped on to compete with Sanity. I never took nay notice of this title on Sunday. Just saw that JB didn't have UHD copies of Alien Covenant or John Wick 2