How 15 minutes turns into 3 hours...

The photography class I am taking on Wednesday nights is 3 hours long, minus a 10-15 minute sbreak halfway through the class. During that time we usually cover about 4 or 5 different topics and look at an abundance of photographs taken by the teacher. I have recently come to the conclusion that the information I have picked up from any of the classes I have attended so far could be taught to me in about 15 minutes, including the time it takes me find the buttons or other necessary features on my camera. Though it would be nice to save the time and magically have the other 2.75 hours back, I feel that I would not want to pay $280 for 3.75 hours of training (I believe there are 15 classes), so I guess I will stick with the 3 hours.