FAEbGBD,

I believe your perspective work in theory. However, the problem is that quality is a relative and subjective attribute.

For me, electric piano sound is not quality. I would rather they invest in excellent acoustic grandpiano sound than give me extra electric pianos.

I know my comments would enrage many, especially those whose genre of music require such an instrument. But that is exactly my point. Quality is a subjective matter after all.

The best Keyboard that handles this is Genesys where all memory is flash. So the factory installed sounds can be erased and replaced.