Evaluation

I have a pretty good idea how to evaluate a band program.  I have a pretty good idea how to evaluate a choir program:

• Level of music being played and performance
• Diversity of music
• Composition, improvisation assessments, etc...
• Anecdotal evidence (program switching directors, new curriculum, etc...)

However, I am pretty sure that many school communities evaluate simply by how many seats are filled.

As we add guitar and hip hop appreciation to our offerings how should we evaluate the program?  How can you tell if a non-traditional program is excellent, good, fair, or poor?

How do we escape the enrollment trap?