My friend gave me his old GameCube since I threw my old one away when I got my Wii (turned out, my model didn't play GameCube games). I'm browsing Amazon and some of these prices are surprisingly high. Paper Mario, Zelda, Sunshine, and other AAA games go for $130-$160 sealed and $40-$50 used. Sure I can find some of the worse games that I loved as a kid for under $5 but even games like "Disney Extreme Skate Adventure" and Mario Party 5 go for $100 sealed. Are these games really that old to be worth twice their original price?