When we go down in October for my husbands conference, we are able to take advantage of a convention only night in the park IOA from 730pm-11pm. Is it worth it to go to this versus go for the entire day when it is open to the public? Will 3 and a half hours be enough time? we also save a total of $73. I suppose there wont be any lines? SO is it possible to do this? Or are we better off braving the public and go for the entire day? We've never been to IOA. Thanks for any advice.