Do they sell gamecube games and Wii games there?

Yes, pretty much all console games from the 80s and after that

yes

They sell most all kinds of games, and sell magazine and booklets, and YES they sell Wii/GameCube games

As the previous posters have stated they do sell gamecube and wii games. They have games for just about every console released in the US. They also have a decent selection of DVD & Blu-ray.