But why should they have to 'make a case'? Bioshock is a shooter *only*, definitely not a RPG on any level, is a twitch game, and is being covered *to death* by every game site on the internet. If there wasn't the System Shock tie-in would it be here?If so, then where are the Crysis previews? Why hasn't anyone been reporting on the awesome controls of Metroid Prime 3?

Because they are shooters and don't belong here. Bioshock has gotten a 'pass' due to the people and the lineage.