From the looks of the massive number of empty seats, lots of people didn't show up to CPAC.
Re: 20 - It seems like CPAC was not well attended based on photos, etc.
Some of that may have been where it was held - Washington? Seemed like it was better attended in Florida.
Rightly or wrongly, CPAC is being associated with President Trump which may lead some to attend and some to not attend. But there were many empty seats at several events, which the cameras tried to minimize but were not always successful.