Lise, may I suggest, perhaps, that you buy him a gift certificate to put toward a classical guitar? If he's been playing for some time, then he will likely want to try the guitar out before he makes a purchase. I know gift cards aren't seen as being quite as thoughtful, generally speaking, but I think that when it comes to personal choices like musical instruments giving a gift card shows that you want to make sure it's exactly what he wants. And you could absolutely go pick it out with him, of course. =)
That's what I'd prefer, personally.
Peace,
James
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Music Gear Review - Keyboard/MIDI and Songwriting Editor/Mod
"I don't like it, and I'm sorry I ever had anything to do with it." - Erwin Schrodinger, on Quantum Physics
Keys: Nord Stage 88, Nord Lead 2, Yamaha W7
Upton Bass Custom Upright, BSX Allegro EUB, '80s Peavey T-40, MIM Active Jazz Bass, Godin BG-5, Fender Bassman 100, `68 Fender Bassman 50 head, Gallien-Krueger Fusion 550, SWR (pre-Fender) Goliath III 4x10, Markbass 2x10 Traveler