Interesting thread. I think the real question for Cake to ask themselves, from a purely business perspective, isn't how many current users would benefit from notation but how many new users they would attract. It is no secret that when programs are used in grade schools, high schools or colleges, in many cases those programs develop a loyal user base. People are naturally attracted to familiarity so someone using Product X in college is probably going to keep using it later.
It seems that several people have made the point that educators are not choosing Sonar due to lack of notation capabilities or acceptable integration with industry leaders. If Cake increases their user base then everyone benefits because Cake has a bigger user base and more development funds to continue improvements to the product. There was a company called Autocad that this strategy worked very well for. It seems to me that everyone is a winner in that case.,,whether you personally need notation or not...... Cake certainly know how to do this, they have the Staff View for one, and several years ago they spun off and sold their notation software (I think it is called Geniesoft)
Now back to Bill O'Reilly;)
Regards