In terms of years since etc, I have nothing to add.

However, I always say I was lucky in that I bought a Yamaha guitar in the late '70s and can never find a Yamaha anywhere near as good since. One or two dealers tell me that they were still smaller production in a Japanese factory then, and the more mass produced ones are built elsewhere.

I have no idea if this is true, but the tone is great, it keeps in tune all night, and best of all, being a cheap one at the time, has a plywood belly. Had an accident with a mic stand many years ago and it hasn't altered a thing other than the visual. (Try that with a solid top.)