It's x-men they and everyone else will release it to death.
What you really should be hoping for is that Disney vaults it for a long while. Ha. Then just like the death of superman comics in the 90's all my x-men steels will be worth gold I tell ya' ... stock up!
Taken Trilogy was 19.99 , I would suspect this would need to be that or less. So I dont think its really cheap, but I'm guessing that is routine with comic book movies, start high before ever having to go lower.
I don't think I have a steelbook for any of the first three films so something like this could be quite useful for me. I have steelbooks for First Class, Wolverine, etc so I'd be interested in this if region free.