Rewatching Dracula for the umpteenth time has really taught me something. If an introvert were to be turned into a vampire, their lifestyle wouldn't change much. They hide from the sun, hang out alone all the time, and enslave the few people that tolerate them to do their bidding.
In fact, a lot of introverts are actually quite spooky by nature. We don't like all the floof and fluff of saying the right thing at a party because we likely will never be 'that person'. A true spooky introvert loathes socializing and thrives in their abode, watching horror movies all year and generally repelling the entire construct of conformity. So for those of us who are sincerely waiting to go outside until Halloween rolls along (which we've only agreed to do so that we can show off our bombtastic Halloween costume), we can just hang out in our coffins, dusting away the cobwebs and giving a tight-lipped grin to the bats in the corner of the room. We're much happier here and proud to be the spookiest loner in the bunch.