Looks like most folks had decent turnout, so I hesitate to be the outlier here, the proverbial killjoy but....Attendance during the couple of hours I was at the Ithaca B and N was sparse. And while the B and N staff were all nice enough and seemed to want things to go well, they also seemed wildly unsure as to what it was all about, why they were doing it. And there was very little promotion of the event - I spoke to a couple of colleagues who I know have children last Thursday and they were totally unaware of the event and activities.
The few kids and parents who did show were engaged and interested. so it was a positive event in that regard but I had really hoped for more than a handful.
And as a disclaimer it is possible that once I left on Saturday afternoon the store filled up and maybe Sunday was a blockbuster as well, but my experience tends otherwise.