I grew up playing shooters. They are fun.
Multiplayer is great. Some of them have good storylines like Half-Life (better story than a lot of JRPGs I have played that's for sure). There are different types of shooters like team based shooters (Battlefield), tournement shooters (Quake, Halo, Unreal, Team Fortress) and there's also Call of Duty, Medal of Honor, Counter-Strike etc...