I saw someone about 100 miles from me selling an early 1980s Guild D15-12 for a price well below $1,000. The thing had a VERY minor issue, the price went down some more and I snatched it. All-mahogany and a beast. Wonderful neck, rock-solid contruction, not as popular as the jumbos (and consequently cheaper) but great-sounding. I'm particularly partial to the mahogany-tops, but I'm sure the spruce ones are ok, especially if you get a good price. Alvarez can be extremely nice, too.