Which party?

I recently saw a flier for a spanking party in my area. Super exciting, right? Well, if you’re me then yes, but the party is put on by people I’ve never heard of. More over they don’t tell you the venue until you purchase tickets, and the tickets aren’t cheap. Granted, I don’t know everyone in the San Francisco BDSM scene, I’m pretty sure knowing everyone is darn near impossible, but I do know a handful of people so it’s just a bit odd that I wouldn’t know the people organizing a party around one of my biggest kinks. So I look through the website, the dress code, the rules and it all seems ok. But I don’t know, I don’t get a good sense of the vibe, I don’t know the people or who else they’d invite. Do I go? I might, I haven’t decided yet. Would you? What do you look for when deciding to attend an event?