My kids aren't that old yet, but we had these in the back of our yearbooks. I think the most touching ones were the ones that had baby pictures of them and other milestone pictures of that student's life. I also thought it was neat when parents gave a story about "We knew then that you were. . ." So for your son if you had a story of how you played music to him while he was still in the womb, or a specific story about how much he loved music as a toddler and when you realized that that would be a big part of his life. And most importantly, I think it is important to tell him how proud of him you are. I don't think this is a waste of money. It might be expensive and he might not really read it that often, but when he does it will be moving. They only graduate from high school once. HTH

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"No one believes more firmly than Comrade Napoleon that all animals are equal. He would be only too happy to let you make your decisions for yourselves. But sometimes you might make the wrong decisions, comrades, and then where should we be?"
- George Orwell Animal Farm