We've had this conversation ad nauseam before, hammer.

However, most of the world listens to music in stereo, whether in their car, on their iPod, on their computer speakers, on their home stereo, or when listening to real live music (if the guitarist is on the left, that's where you hear him play, violins on the left, cellos on the right at the symphony, no matter WHERE you sit in the room).

And, as you have just been reading, several quite important aspects of modern arrangers' sounds suffer when collapsed to mono. Quite easy to hear, I believe (you REALLY haven't noticed it?). So, staying in stereo, the way the instrument is designed (not to mention how most of the world experiences music) seems pretty reasonable. What ISN'T, IMO, is how much a stereo Bose system costs you, compared to most conventional systems of similar output capacity...

Put it this way... I'd rather make a 'one time' investment of $3000 in a quality stereo PA, than a $5500 one