Nintendo has a list of known bootleg sellers on their website, its in the forums section, but its kinda hard to find. They also release updates to this list periodically.
Those pokemon games are DEFINITELY fake, sapphire has a shiny label as normal (and that cart doesn't), and the leaf green cart isnt a foggy leaf green, its the color of the pokemon emerald cart, which proves the seller is selling bootleg games by skimping on using the shade of green for the emerald cart to create a leaf green cart. I call BS on the part about, "the games are from my personal collection and I bought them for my kids at EBgames", they are just lying to cover up the fact that they are a bootlegging operation, I would report the seller to Nintendo immediately.
Sapphire cart specifics, " The Pokemon Company" should be printed on the top right of the game, if your holding the cart so that you can see it, Instead on the fake its on the opposite side. The numbers: AGB-AXPE-USA should be on the bottom right under the Nintendo logo, and in a much smaller font. "Licensed by" should not be printed above the Nintendo logo at all. If you look closely also the printing on that cart is quite foggy and is not up to the traditional quality of nintendo-cart labels.
Oh and thanks for alerting me about the fake carts in different colors, I was sure that bootleggers only used gray carts because they were the norm and the cheapest to manufacture.
Edit: Ok I reported every one of those fake games to ebay, it took a while but we need to get these scum people off ebay.
Report nintendo auction piracy here:
[email protected]
Nintendo's list of countefeit game sellers is here:
http://forums.nintendo.com/nintendo/board/message?board.id=Bulletin&message.id=507