What better way to make a major decision that will affect the rest of your life (and rest of your afterlife) than basing it entirely on how likely is it to make a party happen? You suggest to the vampire that turning you means you can go along as the vampire's +1, therefore letting him exit the camp. The vampire agrees, almost too quickly, and definitely doesn't appear to have been hoping for this exact outcome. He says he thinks this is a great solution to both your problems, and a quick nip, and the start of an eternal life later, you head out into the night, back to your camp, for an evening of some seriously spooky beats.