Yes! it has certainly changed their interest since now they see a dollar amount attached if they take an AP, IB, or Honors class. They can also see how to better prepare for college. Most of my students have to work and thus request partial schedules Junior and Senior years and then they often don't want to challenge themselves because they know they are not going away to a 4-year so these colleges courses are irrelevant.
Thanks for sharing your story and know that I agree with you 100%. Having said that I also know that it is a full-time job to be completing and sending scholarships. One thing that comes to my mind is that most school charge for printing official transcripts. I know of some high school charging up to $5 dollars per official transcript. At my school we only charge $1 for official transcripts (the registrar signature) and it is free if it is unofficial and/or a counselor signs it (up to the donor) so I can see how not only the time but the money. It is doable and if donors are flexible to have unofficial transcripts attached. Most of my local scholarship donors accept unofficial transcripts which only means the registrar didn't sign it but we, counselors, do.