First off, every guy knows that the original Die Hard is a Christmas movie. This was the whole reason I sought to acquire it. Sadly, many retailers were out, but Best Buy came through for me!
It's a great collection, but it is missing the 5th movie (A Good Day to Die Hard). So, if you are looking for a complete set of all the Die Hard Films, wait until 02/07/2017 when the "Die Hard: 5-Movie Collection" comes out.
Personally, I think the last Die Hard film was one too many, so the 25th anniversary set (released the same year as the last film) is perfect for me!