Demon's Souls - showed there is still a huge market for gamers who don't want their hand held.
Resident Evil 4 - A sequel yes, but it was a total reboot and overhaul for gameplay, it changed gaming forever, showing that a radical change in gameplay can still hold over into a sequel.
Dead Rising - showed us that extreme, graphical things can be done, even on a console.
BLACK - modernized the ADS/semi-sim FPS genre and paved the way for Modern Warfare to bring it back to the limelight, showed people exactly how to squeeze every last drop of power from a console.
Crysis - introduced the concept and application of SSAO, showed the world what PC's can truly do, and opened a lot of console owners eyes. The biggest advancement in video game graphics, in history, period.
Mass Effect - first game with a first morality system that reached critical success.
Halo - first mainstream game to introduce a limit on weapons carried, also opened the door for games like Battlefield 3 with seamless melee/vehicle/gunplay combat.
Gears of War - Modernized the concept of cover & health regeneration.
Devil May Cry - one of the first, if not the first to show that an interesting and unique art style can launch a game into mass appraisal before the juicy gameplay is even considered.
Uncharted/Assassins Creed - ushered the way in for parkour and general climbing systems into video games.
Mirror's Edge - didn't reach the acclaim it deserved, but it showed that a first person shooter can be immensely enjoyable without ever even firing a gun.
Grand Theft Auto 3 - see Resident Evil 4. Bought open world and free roaming truly to the masses.
Operation Flashpoint - Bought the War Sim genre from a niché into a genre.
ArmA - Showed what is possible when you make an engine accessible and modable, even online.
Half-Life 2 - evolved the Source engine into the flexible masterpiece it is today, Valve dared to create a story driven, single player game in a genre that was almost exclusively multiplayer and they succeeded.
World of Warcraft - Too much to put into words.
DOTA - May of been a mod, but look what it's done. Most influental video game mod of all time second only to Counter Strike.
Portal/Left 4 Dead/Counter-Strike: Condition Zero - These showed how to use a game engine properly without breaking it or becoming stale.
Call of Duty: Modern Warfare - again, not a sequel, but a gameplay reboot, the rest is self explanatory.
Those are just the ones I can think of, although tbh in an industry that's almost 50 years old, expecting completely unique and brand new concepts to spring up regularly is incredibly unrealistic. To say gaming is rubbish now is ridiculous, this has been the best generation of gaming, ever. The new generation is almost here, how can you not be excited?
Just sounds like you're too old for video games tbh, and should find a new hobby, either that or move on with the times.
