Here is the most likely "story" behind that listing:
The Game of the Year Edition was released after the base game became a massive hit. The story here is that Gearbox wanted to give new players the definitive experience. Instead of buying the base game and 4 separate story DLCs (plus 5 headhunter packs, 2 character classes, and the Ultimate Vault Hunter Upgrade Packs), this edition bundled almost all the major content into one install. Borderlands 2- Edicion Juego del ano para PC De...