Part timers, enthusiasts and hours builders can all add to the Total Club/School Product.
Given this ridiculous trend for permanent staff instructors to be paid by the flying hour I tend to agree with VFE about instructors prospects.
If these people are happy to fly for nothing (and why not) it shouldn`t mean that the students shouldn`t not continue to pay a professional rate for professional services and the proceeds used to bolster staff salaries.
Often the part timers can take on some of the flying duties releasing the instructors for classroom work, long briefings, syllabus development, networking (drumming up trade) in the community etc etc.