Over the last 20 years, the average college student at a public university has seen prices go up 64 percent, as schools spend more and more on amenities to attract students and raise their own rankings.  Guest: Melissa Korn, higher education reporter at the Wall Street Journal. If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices