I have seen plenty of people changing avis all the time, daily, weekly, monthly... Constantly you could say.
Others, have been with the exact same avi ever since I first met them... Others never bothered to set an avatar in the first place.
For me, changing avatars is always a hard thing, I really like almost all pictures I have used as avi, and I want to keep using them for as long as possible.
At the same time, I want to use all the other lovely pics that are waiting on my folder...
It's really hard, you know? I want to use them all, but I never want to change!!! >.<
Sometimes I wonder how can some people never bother to change their avi... And how others change theirs quite often very easily...
Hmmm... Maybe a magical explanation will come to me in due time... I don't know... >.>