An update: I printed out this entire thread, and gave my son all 18 sheets a few days ago. He read it cover to cover, and I think between the opinions here and what I'd told him already he said he'd like to get an acoustic electric. I waited a little while to give him the printout because the purchase will come after the tax return comes in. :)

A lot of what people spoke about here will be over his head, but he'll have keywords when it comes to speaking with and selecting a music teacher, and that's important. If he feels that the teacher understands what he wants because he was able to articulate what he wants, then he is most likely to stick with lessons, to practice, and to enjoy the music he makes.

Thanks, all!

Maggie Dwyer (SRS)