I see the "Review" of the M40 is still listed in the "Reviews" section, so perhaps the receint discussions, by John, and others, in this forum about the M40 has helped to keep it alive!

There are a number of folks in this forum who have them and are aggressively happy with them, it would be a shame for them(the speakers, and the members)to go away!

It is historically accurate to say, however, that those systems that don't sell well, do tend to fade out of the picture.