pinside

Quoted from Koos:I second that! But are those organized on a yearly basis? I thought only at specific milestones like the 25th anniversary last year. The one in evoluon was a special one indeed but it is mostly every year. I would not book anything special if I were you in November weekends

Source: http://pinside.com/pinball/forum/topic/kill-bill/page/3#post-4418832