Cultural Festival

Ok, another rant, though I already have a feeling I"ll have to finish this one by and by. Just wanted to express amazement (is that the word?) that there are so many instances of cultural events - there's one in nearly every school life related manga! Let's see...Gakuen Alice, check, Special A, check, Ouran High School Host Club, Ultimate Venus, yep yep yep....A lot more...And, the thing is, most of their cultural activities (except Gakuen Alice where the children are really too young for the concept) are bulter/host clubs. ??? This tried and tested formula seems to be getting repeated a bit too often. There needs to be some other ingredient.