I took my husband's last name when we married. If I had been planning to stay in the same city and continue to work there in my field, I would have considered keeping my maiden name because that is the name by which my corporate and media contacts knew me. But I've always been fairly traditional regarding marriage rules and have always wanted to take my husband's name.
Plus, I've moved up the alphabet from a "Y" to an "A" which I rather like!