You get support and reinforcement from fellow students and the courage to make changes in your own workplace. A well-trained instructor opens your mind. Cost, travel time, time commitments cause problems. Workshops can be as valuable as a credit course. I like the fact that I can apply LT course credit toward attaining a college degree.
Nobody likes the term paraprofessional.
There needs to be training for people who operate small town libraries. Job market waxes and wanes and so does certification. I think the current LT certificate program is good, but I don't believe it should be mandated. Continuing education is always important, but the cost for courses often exceeds the benefits for those working in a small library. This survey really does not apply to volunteers.