Middle school or high school visits

I have spent the past month doing a tour of local schools to sell books and introduce myself as an author. I found something that rather surprised me:

Middle school/junior highs are more supportive than high schools.


Here's how:

1) While some high school teachers handed out my order form before my visit, others felt their students wouldn't order any books and so did not. Middle school/junior high teachers handed my order forms out to students to take home.

2) All teachers promoted me, but middle school/junior high teachers took their kids to my website, watched my trailer, put me on the morning announcements, etc.

3) The high school students were not as interested. Of those who received order forms, only a few brought them back. They also were less attentive and didn't participate as much in the presentation.

4) The majority of high school teachers didn't even respond to my offer. Many middle school/junior high teachers did.

The difference in sales was so huge that I'm debating whether or not I should continue visiting high schools. I think for the middle school/junior highs, I am more of a novelty, and perhaps they simply have more time in their busy curriculum to fit in an unnecessary visit like an author. High school teachers probably get everyone and their dog offering a visit.

I still have three more months of this before school lets up, so I'll inform you of how it ends up being at the end.

School visits. Have you done them? What worked? What didn't?