The single player experience.

[Scoobes]

Whilst single player seems to have taken a back seat to multiplayer in FPS', there are plenty of games with good single player experiences this gen:

• Mass Effect series
• Uncharted series
• Half-Life 2
• Portal
• God of War III
• Elders Scrolls
• Fallout
• Bioshock
• Super Mario Galaxy
• Zelda
• Metroid Prime
• Dragon Age
• Metal Gear Solid 4
• Assassins Creed series
• The Witcher
• Starcraft 2

There are also some potentially great single player titles comming out in the next two years like Deus Ex Human Revolution (prequel to Deus Ex which is highly regarded as one of the best SP games ever made), Final Fantasy XIII Versus, Last Guardian, Skyrim, The Witcher 2 and Duke Nukem Forever.