With GameCube support virtually nonexistent since Nintendo interred the Wii, many games not popular or commercially successful enough to warrant HD makeovers were buried with it. That's a shame, because the little purple lunchbox hosted some of the industry's most experimental and overlooked titles that became classics in their own right.
Recent reports suggest that Nintendo will put up GameCube Games on the Switch Virtual Console, listing Super Mario Sunshine, Luigi's Mansion, and Super Smash Bros. Melee as shoe-ins for early availability. Those are fine games, and fans can expect other first-party titles like Metroid Prime and The Legend of Zelda: The Wind Waker to join them.
However, some of the GameCube's best games had nothing to do with Mario or Link.