There is no rush. You don’t win a prize for getting through the show first. Talk to the Wedding Pros and ask questions. Take notes and observe. Go through a second or third time. Your perfect Wedding Pro might be the one you didn’t see the first time around.
The best time to go to the show is actually closer to the middle or end of the show. There is usually a big rush right at the beginning and the Wedding Pros are overwhelmed. Later in the show, things will have calmed down, and by the last hour and half of the show, you'll practically have the place to yourself. You'll be able to see the exhibits better, the Wedding Professionals won't be as busy, and the noise will have gone down.