Congratulations!
Having been a lurker since December '03, and a member since March '04, I have thus witnessed more than half of that decade... And what can I say? It's been a fun 6 years!
I started out by documenting my switch from PCs and Sony consumer devices to all-Apple gear, and proceeded to share with you an embryonic Mighty/Magic Mouse concept of mine which I sent to Apple... Those were the days (when I posted huge diatribes about whatever I came across

)!
The only thing I deeply regret, being the premonitory optimist I am (seriously, as pedantic as this may sound, I have as good an "Apple predictions" track record with my friends and acquaintances as Gruber's with the whole blogosphere), is not having bought myself loads of AAPL shares when they were still dirt-cheap.
Anyway, in all fairness, I think I partly owe you all (and, of course, Apple) my new job as my Faculty's Mac Room monitor. I always felt I was a bit of a dislocated geek even amongst Mac users (let alone PC owners), but as I'm finally profiting from that I suppose my time was well-spent lurking here after all (I think it would have been anyway, but since it took me so many years to finish my course I was starting to have second thoughts about that).
So here's to another 10 years of sharing, gossip and speculation!
