I had the pleasure of finishing all of these games years ago. They need to be here because they are good old games. I really wish all of KONAMI's games, especially the Castlevania titles, were here on the GOG store because I trust this store and support the initiative to preserve games forever. And I also believe that we as consumers have the right to truly own what we buy.
This Castlevania collection was produced by game developer M2, the same company behind the Contra Anniversary Collection, which is available for purchase here on the store, which is another reason for it to be here.