I'm becoming hesitant on this product. One of the kids at my Library group got one of these, and it only contained 1 Holo (Chesnaught). I know you really can't expect the Pokemon company to rig ALL of the boxes, but let me say three things...
1) A lot of Japanese Products are specifically weighed, like those Cocoon of Destruction Blisters. No excuse not to do it in the US!
2) If I was to buy a Box that had packs only from 1 specific set, I would prefer playability over rarity. If I was to buy a Box that had a mix of cards from many sets, the pulls on playability would probably be low. Because of that, a Box that has mixed packs should have at least a Holo or two. With 8 whole packs, 1 Holo doesn't justify the $50 tag. (Yes, I know you could always get lucky and pull 3 EX's, but that is very unlikely)
I defenitely won't be requesting this for Christmas anymore. Such a shame, especially since that Mega Metagross is okay.
Edit: On another note about Japan being lucky, a Japanese Booster Box is about 40 USD, and you usually are guaranteed 3 Ultra Rares, sometimes 4. With 20 packs, you are getting 100 cards total for 40 USD. American Booster Boxes, while they do come with more cards, are the only reliable source of getting Ultra Rares with no strings attached. Unfortunately, they cost 100 USD, meaning that getting one is very situational. What I would like to start seeing is American Mini-Booster Boxes. They would come with 12 Packs (1/3 of a Box), and still guarantee about 3-4 Holos and/or 2-3 Ultra Rares. I wouldn't even mind of they cost 50 USD per box, just ANYTHING excluding Promo Boxes and Tins as a method to get Ultra Rares guaranteed works for me!!