The Mask you saw on Ebay was most likely, Offered at a Comic Convention.
Can't remember where the Convention was?
But that was the only place the Mask has been offered thus far.
That is why the price is going thru the roof on Ebay.
You can purchase a PROP replica from DC DIRECT, But that one is $200
And you would not want to wear that one.
Hopefully it will be mass produced for Halloween, It probably will if the movie
does well.
Wear the MASK to School

May i ask how old are you Sir ?