I haven't returned to BEA! However this morning a comment from Troy Johnson brought back many memories so I went to the BEA site - http://bookexpoamerica.com to refresh my thoughts. Much to my dismay I learned the 2016 event will be held in Chicago instead of NY. That takes care of 2016 for me!!
"Book Expo America (BEA) is the leading book and author event for the North American Publishing industry. It's the best place to discover new titles and authors, network, and learn the latest trends....."
Again, I will simply say - should the opportunity present itself again - I will attend with different eyes and intentions and NO you cannot just show up to sell and buy books!!