It's kind of fun because the first Macworld I went to must have been ten years ago this year. I was working at CompUSA at the time, and I distinctly remember being kind of Mac-y at the time (my then-boyfriend Joe was trying to buy a IIvi from us, but Apple couldn't actually deliver the machines; I wound up slipping him the demo Centris 650 the store got in in early 1993). And then there was the 1994 Nextworld I went to, where I remember Steve introducing NexTime by playing a Star Wars clip, but I'm getting ahead of myself here.
In the meantime, the last Mac I bought was in 1998 (an iMac for my brother), and I can't really see myself buying any more of them, ever, but it's still fun to watch the show. For example, downloading QuickTime this morning, I note that Apple lists as one of the reasons to use QuickTime the simple fact that they are responsible for great stuff like USB and 802.11 networking. NIH, my ass. :)