I was excited to get mine too. =) I think it's a feeling like you've kinda earned membership here and kind of proven something to yourself that you've been around for a month.
I was SUPER excited to get my ticker too! I think it has something to do with actually having a physical reminder, every time you post, of the weight that you're losing. At least I think that was it for me!
I know what you mean.. sometimes I think that my trackers is what keeps me coming back to 3FC, more than anything! They're just really awesome at keeping you on track, determined, and motivated.