Though I feel this largely applies to RPGs more than other games, I'm sure there are a few other genres where this is a factor. What are your requirements for quitting a game you've put time into and starting over from scratch? I say this because I'm thinking of picking FF:4 Heroes of Light back up and I am currently debating whether I should continue where I left off or if I should just start over from scratch because I never made it far into the game.

When do you throw in the towel and just start over?