Any active user that joined in 2002 will receive 500 free Microsoft Points as a reward for being loyal.
"In just five short years Xbox Live has revolutionized the way friends and family have fun in the living room," said John Schappert, corporate vice president of Live, software and services at Microsoft. "On its fifth birthday, Xbox Live truly is the place for hanging out with friends and enjoying downloadable TV shows, movies, videos, game add-ons, and now downloadable Xbox games on demand."
Source:
Dailytech