320kbps MP3 is still inferior to even 16/44 wave... and yet that is considered the HIGH end of music delivery for a lot of people.

I use decent nearfields and a 24 bit converter on my pro work, but that doesn't mean, at the end of the day, that it is not converted to 16/44 for CD release, and then converted to MP3 for electronic delivery, and that every keyboard on every CD made prior to just a few years ago (and STILL the overwhelming majority of WS's and arrangers still in production) were no better than 16 bit. It didn't stop them being huge successes (contrary to the MS).

Looking at the broader picture, the bitdepth of the final output of a keyboard is quite possibly the LEAST important spec of all. As I have so often said, sh*t through 24 bit converters is still sh*t. And a great sound through 12 bit converters (remember all the hits made on EmulatorII's?) is still a great sound.