For those who missed it at $8.90, which sold out after 10 minutes or so.
Hopefully there is a bit more stock this time. Just got the alert from Camels 10 minutes ago.
Contains 6 Discs: xmen / xmen 2 / xmen the last stand / xmen first class / xmen days of future past / xmen apocalypse
Edit: Alien: 6-Film Blu-Ray Collection is also available again, but at $19.99 instead of $17.71, for those who missed that one also.