As I am not a person who creates them just for fun, I usually keep them as long as I want to, means forever. But when I have to discard the whole story for I did it a long time ago and there is not much to save through changes, than I have to discard all those OCS in there.
I like both, this one is more for Fun, and so far I'm having a lot of success with this Account. It's definitely a stress reliever and I really enjoy it. I think I take my Human one a bit more seriously, however.