This year, the Vegas class from PPWC was moved to the Sony Certification course referred to in other threads. I can't speak for what people will be attending, but can say that the PPWC is by far the most popular conference at NAB. It's a lot of fun and a lot of information by movers in the biz. You'll find Victor Milt, Jeffrey Fisher, Dan Selakovitch and a few others that occasionally visit this forum as presenters, plus a host of other great trainers like Rich Harrington, Abba Shapiro, Luisa Winters, etc. at the event. Bear in mind, you also don't have to attend a conference. Just the 4 major buildings of show floor is in itself an attendance feat. Wear sneakers or comfy shoes, because you'll easily walk 5 miles a day.