The Goenka centers are non-profits and the courses are free, including room and board. At the end of the class, you're given an opportunity to make a donation.

The Goenka centers are non-profits and the courses are free, including room and board. At the end of the class, you're given an opportunity to make a donation. It's made clear that this is what sustains the center and makes it possible for future students to attend the course. If I remember right, they tell you how much it costs to house and feed a student, so there's an implied "this is how much you should give". But I have the strong impression that many students give much less, and a small number give a multiple or give large donations at other times. There's no further pressure to give money (or come back) after you leave the course. Edited to add: as for Goenka as a leader figure: the whole course is taught using audio and video recordings of Goenka explaning his interpretation of the teachings of Gautama Buddha. He adds his own life story. I can't think of any way that adoration of Goenka is encouraged. In fact, Goenka refused to confirm whether he had reached certain standard levels of semi-enlightenment (e.g. arahat) saying that he wanted to avoid idol-worship around his person. And unlike many "gurus", I don't know of any accusations that Goenka took advantage of his students. The retreats can seem cultish because the rules are strict and weird, and you're strongly discouraged from leaving halfway through the course. But I think by any reasonable checklist of what makes a cult, the Goenka centers would not quality.