Videography or Photography?

I am trying to determine which i should do. I mean I do love taking pictures, but I also like taking videos! Currently I am shooting with a nikon D5000, but the only negative I do not like is that there is no way I could hook up an external mic. So would it be worth it to upgrade to a D90? I don't know. I will just have to see. But to show you some of my work I attached a video. It is a promo for this event in my local community. Tell me what you think. [vimeo w=398&h=224]