Maybe some clubs are scared of offering a lower entrance fee, just in case they lose money?? And if it worked for belle vue, which it obviously did, do they now do it every week, or was it a one off?? I'm gonna guess at one off and the crowd is back to be its usual. So that begs the question, why didn't they carry it on, ya never know, some may have stayed in the habit? Who knows. could speedway work as a tenner sport??
I can't ever remember the club I follow ever giving a penny off.