As a blogger, Indie Author, or in my case, both, tracking and analytics is imperative to continued success. If something works, you want to know that it works and then you want to know what you did, so you can repeat it. No one is going to knock on your door and say "Hey, what you did there. It rocked. Do it again." But, if you see that people are clicking, things like links... a lightbulb can go off, and you'll realize that your efforts are paying off. If you can't tell what people are clicking, though...well you've lost before you even started.