What is the “Advantage” line of Yamaha band instruments?

Advantage Instruments? Many wonder, even after more than a decade of marketing and manufacturing, what the difference is between a standard series Yamaha band instrument, and a Yamaha Advantage band instrument. There is the Yamaha YFL-222 Flute, and then the Yamaha Advantage YFL-200AD Flute. You have the Yamaha YCL-255 Clarinet, and the Yamaha Advantage YCL-200AD […]