I bought my first Mac Mini in 2005 and have been a Mac user ever since (not counting the Apple //c I owned back in the day). I looked forward to seeing Steve onstage at both MacWorld and WWDC. I'm not real keen on Jobs as a person based on what I've read about him, but that man could sell snow to Eskimos and his keynotes have always been worth watching.
Now the rumour mill is going to be out of control - great.
I also suspect the MacWorld Expo is on its last legs now. Without Jobs and Apple how will it survive? Of course, I've never been to an Expo (I don't have that kind of money!) and the only thing that really interested me was the "Stevenote" so I don't really know what the value was to attendees. But one has to wonder if the MacWorld Expo really is going to survive and how much it will really matter if it doesn't.