In defense of Costco, they have consistently high quality products, we've not been disappointed to date with their stuff. If the Yamaha in question is a good guitar, don't understand why it shouldn't be purchased there.

Anyway, I live in Carlsbad, CA, about 30 miles north of San Diego. And the Yamaha has steel strings. Sis steered me in the same direction--start with steel.

Thanks again for all your input, much appreciated.