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

[nordlead]

I complete almost every game before buying another. However, If a highly anticipated title comes out and I'm not finished the other one I have, I will buy it, and then play a little, and typically go back and finish the other.For example, I bought Galaxy while I was still playing Fire Emblem:RD. I played a handful of galaxies, and then went back to finish FE:RD.

Out of all the games I have for the Wii, I have beaten all but Mercury Meltdown Revolution.

For the DS, I've beaten all but Mario Vs. Donkey Kong 2 and I'm currently working on Advance Wars: Days of Ruin.

I figure why spend good cash if your not going to play the whole game.