That's a nice site... The author has some really good points about for-profit colleges too.

  The $20 Principle
  
  I have written before about how $20 can change a 
  student’s life.

  The $20 is slightly euphemistic but not entirely so.

  We talk a lot about big money in higher education but I 
  know for a fact that it’s small money that can derail 
  one’s educational ambitions.

  I was a student in a doctoral preparation program. I was 
  an older “non-traditional” student. I was independent. I 
  didn’t have children but neither was I still someone’s 
  child. To take advantage of this highly competitive 
  program, I had to submit a $100 reservation fee.

  I didn’t have it.

  I was $24 short.

- https://tressiemc.com/2016/08/30/the-20-principle/