Macworld got really quite. Apple's absence changed the Macworld 2010 to a smaller more intimate gathering geared towards the hard core Apple community.
The MercuryNews has a report that captures some of the impressions from attendees. If many of them come back to the Macworld 2011 is questionable. Macworld is not a must
The Macworld Expo is expected to see 30,000 visitors instead of 90,000 it once had.