Attending Startup School last year was one of the few identifiable events that led me to starting Bayes Impact and joining YC with a nonprofit. Listening to Chase Adams talk about his experience with Watsi was incredibly inspiring, and similarly the other speakers instill in you a sense of urgency and possibility. I wouldn't measure the value of going in information -- in fact much of the information can be found in PG's essays and generally online. The value is in lighting a fire under your ass to get started and meet others that feel the same way -- that in itself can change the course of your life.