I expanded on the points I made in my post from early this morning (G20-Expo comparison is weird) in an interview on 612 ABC Brisbane by Steve Austin later in the morning, which you can listen to at this link:
Why the G20 doesn’t measure up to Expo 88
The important point I made about having to compare hotel occupancy rates during G20 with what they would otherwise have been at this time of year came from one of my loyal readers who commented on my post this morning. Thanks Jim!
Queensland Economy Watch 
You and John Quiggin are on the same page with this one http://johnquiggin.com/2014/11/14/a-policy-lesson-from-g20/
Thanks Mark. Qld Govt and BCC should have thought more about how to maximise local economic impact because Commonwealth really wouldn’t have cared. At least some venues have done ok it seems:
http://www.brisbanetimes.com.au/queensland/brisbane-g20/g20-delegates-hit-brisbane-pubs-and-strip-clubs-20141115-11nb3o.html