That bugs me to a point because I value an experience more than money. But that being said I do like being paid but ultimately it is more about the journey than the destination.
As far as motivating my students, I would honestly say it has been so-so in my 3 and a half years of teaching. I have the most success with 10th and 11th graders. I guess because they are more mature than freshmen and don't have senioritis like seniors.
What I try to do is get to know each of my students and find out what movies, music or hobbies that they like and try to put a drafting spin on it. I have several guitar players in my class so we are going to design a guitar maybe build it in the spring.
I guess what I try to do is get to know my students and assure them that I only have their best interest in mind. ANd hope they buy into what I'm doing.