It’s an agility test. You sign the book someone is buying, you try to keep track of what they’re telling you as you write, you come up with something original to inscribe each time, others are waiting to talk to you, the supply of books must be looked after, and the appetizers, and the friends helping you out.
Hey, better a hopping book launch than a quiet one! Finally you settle down with a small group and read them a five minute passage from the book, and talk about how you came to write it.
I wouldn’t mind doing this every week! Of course, every five years is more like it.