Completing SP Games

[LDiCesare]

Agema said:
I've very rarely completed SP games on anything that is based on random maps (eg. Civ as opposed to, say, Starcraft where you 'complete' the game). Once the hard part is over, you may as well go to a new hard part.

In Civ, depending on what you're targetting, the end may very well be the hard part (One City Challenge in Civ2 for instance, or a cultural victory in Civ IV).
I tend to finish all the SP games where I remember to set a victory condition (usually about half the provinces or half the land provicnes). Otherwise, I will erase the game after either getting bored or having tested what I wanted to test (nation, spell, whatever).