How much time do you spend on tweaking the game play of your games?
I have finished up all the challenging functional parts of the game I am working on and I am working on the cleanup and finishing touches (Improving graphics, adding sounds, background music, etc.).
I am also, tweaking the game play mechanics to make it challenging while still playable - but I feel this could go on forever.
What is a good cutoff?
Also, how does everyone feel about getting outside input from friends, associates, offspring, etc...?