Monitoring ones traffic is one of the threads of the woof (or is it weave?) of blogging. It's all part of the fun. I mean, we aren't doing this to become wealthy lay-abouts.
I noticed that I got a big bump in daily traffic when I moved from blogger to movabletype, but have no explanation as to why. Most of my inbound links are from folks looking for a specific topic or image, while it looks like a lot of your traffic is from people coming directly to your home page (ie, I probably have more traffic because I have over 3000 blog posts of cut 'n' paste - much of it unavailable elsewhere without paid subscription, but folks come to your page to read the content of what you write).
If I had a point, I've forgotten what it was. Sorry. :)