Do you complete a game before going on to the next one?

[ookaze]

I try, and I will succeed.
I actually have games that are approaching 10 years old.
I still haven't finished BG II, or Neverwinter Nights (I've finished the main campaign, now I must finish the two expansions). These PC games just bore me to death, and I am an ex tabletop RPG gamer.
I'm trying to finish all my consoles RPG though. I also have other games in other genres, but I wonder if I will ever finish them, with some I just barely started :
Metroid Prime (I'll try to play this one), MGS Twin Snake (this one bore me to death), FFCC (this is a shitty ARPG, I'm not sure I'll ever finish it), several Zelda (all except LTTP that I finished, I will finish them all though), and the PS2 RPG that I bought recently and will finish for sure. There are others like God of War that I haven't even opened (but bought recently to try) or PS3 games that came bundled, like Heavenly Sword that I will finish, and F1 GP that I won't even open.
Then there are Wii games.

Wow, I could actually hold for years with the games I have already.