As far as steel strings are concerned, you can get an ordinary electric guitar for a lot less than 450 pounds. If you only want to practice without waking the street/family/cat, it's worth considering. You can get low-power amps to drive headphones, down as small as a couple of inches each way or less. I can't see much advantage to the Yamahas, apart from the weight saving. And with a big amp, you can be a rock star!

Steve