An anonymous reader quotes a report from Princeton University, which said it will cover all expenses for most families that make $100,000 a year or more. As families across the income spectrum struggle with rising college costs, the Ivy League school is continuing its leadership in the area of financial aid. About 25% of the student body will not pay anything for tuition, housing or food under the plan. Families making less than $65k were eligible previously. The university said that the costs for students whose families earn $150,000 a year or more will be cut by almost half. The total cost to attend the school is almost $80,000. At the end of June, the school's endowment stood at $37 billion.