I first joined Akatsuki, mostly because a friend joined and I was an Academy Student and well...you know. Then when I felt I wasn't getting anywhere in Akatsuki, even though it was a really nice clan, I ventured off to another clan because a friend asked me. Then I finally joined the <Guild>, I had actually been thinknig about joining when I was a Genin, but didn't do so until I was a Jounin. I mostly joined the <Guild> because of the nice atmosphere of the clan, everyone is so friendly to me and I have some friends in the clan...I don't plan on leaving anytime soon.
Heh, so much nice talk about the <Guild>, I'm really happy with my decision to join it.