It is a well known fact that getting tickets to Tomorrowland is not only very difficult but also possibly very expensive.
According to this post on the Tomorrowland’s Subreddit a mysterious purchase option available during the World Wide Pre-sale has turned out to be a € 15 Tomorrowland Ticket.

The details of the ticket are still relatively unknown. But just… Wow.
Nobody knows if the WordWide sale this Saturday will include these mysterious tickets.
I can tell you one thing is for sure, I will be vying for one.
Good luck to all those hoping to party in Boom!