Arie, we're going to have to change it to something more risque to get their attention. I'll begin digging through my k-pop and anime .gif repository ASAP.
I really like it! I didn't really notice before because I'm usually on my phone, and the banner is so tiny and I always scroll down right away.
I think it's a very nice feel.
Personally, I wouldn't care if you changed the banner every week, haha. I like new things!