Yeah maybe so. But they played in sweden both in 2000 and 2001. In 2001 they played at arenas with more capacity than the Crush tour (in sweden). I think they would sell out a concert with around 15 000 people capacity...

I understand if they don't want to play at stockholms stadium again, One Wild Night tour there was 17 000 fans.. far from sold out. I heard Maiden will play there this summer and the tix were sold out real quick (37 000).