50%? Likely if you go to Hong Kong, but here I'd doubt that even one-hundredth of one percent of cards are fake. I agree that prices are ridiculous...some stuff like Yata-Garasu, Exodia, Injection Fairy Lily, Vampire Lord, Dark Magician Girl, Mirror Force, Gate Guardian, etc. are just insane...on sites they can be $70 and even more for just one. I get all my cards off of ebay because it's way cheaper, but still the prices are insane. There shouldn't be a card that costs any more than $5. People just jack the prices up because they can, and that keeps me from ever being able to afford the best cards in the game...