Lol. I've been to a couple. They are fun, a more laid back social setting than the normal in and out business feel. There's been snacks drinks and music in the past events. It's a good opportunity to get to know the staff on a more personal level. The party usually moves down to Murph's after where there is a tank they service. As for an invite only, I'm not sure but I'm usualy offered a ticket in advance for a lesser price than the " at the door" amount. But as far as I'm concerned the staff at TRS are fun knowledgeable people to have a few drinks with.