Do You Tweet or Do You Think Twitter is For Twits??

So, I started a Twitter account. I felt pressure to do so from a friend. He assured me it was the place to be, the thing to do. He said that because I like to change my status on Facebook that Twitter was indeed the social tool for me.
I admit, I do love to change my status on Facebook, but I'm not sure that I understand this new phenomena of Twittering.