Yeah, I remember those, good times. At the European Professor Cup three years ago, all of the booster packs we got to make decks from came from those wacky booster displays! XD So absolutely everyone was running either Mewtwo* or Pikachu* in their decks. :lol: (Actually, everyone could choose which one they would like to us, as everyone had at least one of each)
But still, even in Ice'Cold's box, it was only 10 in 36 boosters that had a premium rare. In the box of my siblings, there were 22 premium rares in 20 packs, meaning an average of more than one premium rare per pack. As far as I know, that's the most crazy manufacturing error yet.