The Wizard of Oz is a timeless classic. The movie itself is a wonderful fantasy, although one wonders how much better it might have been if some scenes had not been deleted in 1939 (such as the Wicked Witch despatching the bees just before the winged monkeys on Dorothy and co on their way to her castle).
However, what is so special about the "Limited Edition Steel Book"? The case is steel. That's it. If you have the 60th anniversary edition, then don't bother with this steel book.