If you're looking to go to the April 7th one, it's actually not taking place that day. The OMGiggles tourney will be happening. (Bluewolf should change that so we don't have disappointed people showing up at St. Thomas
)
Here's the OMGiggles thread.
http://smashboards.com/showthread.php?t=98877
At Smashfests, it's basically everyone doing free play all day. Sometimes at smashfests we have tournaments for fun and you don't have to pay. We might do Singles, Doubles, Low Tier or Crew Matches. Crew matches happen a lot. They're lots of fun. But it's mostly just everybody playing friendlies.
At tournaments, a doubles tournament takes place ($10 per team), and then a singles tournament ($10 per person). After the doubles and singles are done, it's basically a smashfest. Sometimes we'll do a crew match. Also, people play friendlies before the tournaments begin.