* “we might attract more students then can fit our capacity”.  If that happened, then I think it would be a HUGE success.  I have never seen our dojo overflowing with capacity, even at the most popular of seminars from visiting instructors.  We can easily train up to 10-15 people per class with ample room for movement.  As a martial arts school, we expect student attrition.  It happens.  I believe data from other aikido schools (that I have seen in the past) shows that less than 10% of people who begin aikido will be persistent enough to stick with it.  So you need a very high initial capture rate to generate longterm student retention.  The more the merrier.  And if we did by some miracle ever overflow our dojo, we could raise rates to lower interest/attendance in our school.
                Simple supply/demand economics dictate here. The nice thing about teaching aikido, is that it really costs us nothing to add more students to each class.  The overhead is what is costly.  The actual instruction is free.  None of the yudansha are getting paid.  There is no commission.  I know that I would personally train anyone who walked in the door wanting to see what aikido was about, and I would do my best to spark their interest and perhaps encourage them to come for another class, and then another.