Does this marketing actually work? If so, then I could charge people $5000 for a &#x27;job skills development course&#x27; with a money-back guarantee. Maybe I make them read a book or something so they don&#x27;t get suspicious. If they get a job, I profit; if they don&#x27;t, no real loss to me. If 30% of the people find a job, then my expected value is 0.30 * $5000 = $1500. Plus even if someone doesn&#x27;t find a job, they might not bother with the hassle of turning in the guarantee(the old rebate trick). The guarantee is free money for me even if it&#x27;s completely ineffective or even actively harmful to the person.<p>Udacity are mainly online courses, so I imagine it&#x27;s pretty low-cost to offer their courses to people who turn in the degree. It seems like one should be suspicious of altering their trust level in Udacity even with this guarantee.<p>Then again, it does at least get the incentives right for them, since they would make more money with a better program. So in the long-term, maybe it&#x27;s a good thing.