Fair warning; I have no intention of buying a Holiday Box, nor do I have any idea how well these things actually sell for Wizards. I've only seen a few out and about in the past.
But I do know this promo is sweet.
There you have it. Your promo for getting the Holiday Box. Worth it? Honestly, maybe. They're a fine gift if you know a Magic player, and the art of that charm is probably beautiful in foil.
I'm not sure that will be enough for me to buy one, but it will at least make me consider it. You can find more details here.