There are only a few arranger instrumentalists I would pay to hear play; some on are this forum.

They take the arranger to a level that I feel is worthwhile spending my time and money to listen to them.

They have obviously spent time learning the instrument and how to make it shine, and are beyond simple chording and/or playing over commercially produced midi files.

Same goes for guitarists, organists, piano players, etc.

Some are just able to take the instrument farther than others.

Ian