The service carried more than 700 passengers over several days during October.
The service had reportedly carried over 100,000 passengers by September.
The service, which accepts advertising, will carry some national events.
Most services carry 700 to 1,500 titles, far more than the average Blockbuster store.
It estimates that the service can carry 2,500 people per hour.
By 2010 the service carried four million people per year.
Running every 20 minutes during the morning and evening rush hours, the free service carried an average of just over 800 people per day.
The service carries over 200,000 passengers per year and first turned a profit in 2006.
If it cannot decide, the service will simply be carrying on with its own agenda.
At its peak the service carried over 10,000 riders each day on five different routes.