Everyone knows that public colleges and universities have been jacking up prices in recent years. But Matt Bruenig at Demos had the smart idea of looking at who's having to pay those jacked up costs. According to the College Board's data, the increases are concentrated on students in the upper middle and upper classes, with students from families making under $32,500 a year largely spared:

Same goes if you look at it percentage-wise:
This obviously doesn't mean the tuition bumps weren't painful for those who've had to pay more, but it does suggest that the schools in question are being progressive in allocating them.