This is my first Otakon so I am really looking forward to it! My friend and I are staying Thursday/Saturday and we preregistered. We are debating whether to get to Baltimore early and get our badges or chill out for a bit, and look around. I know some of the Otacupid singles are planning a meet-up on Thursday for the early birds so I'll get my badge before then!
I am quite intimidated by long times but from reading the posts here I don't think I got anything to worry about It seems the line moves surprisingly fast when the number of people are considered.