$18,000 for a 1.0 GPA. I guess we have to spend $36,000 for 2.0, and $72,000 for students to achieve a 4.0
However, there is the law of diminishing returns on the marginal rate in economics. Therefore, it will take hundreds of thousands of dollars for incremental gains at some point. How about we just get the government out of the classroom, disband the teachers' union, and go back to letting teachers teach.
When gov overspends, know where they cut spending first? Yep, education. My States university system built a brand new football stadium @ 100 million dollars - to replace the new 100 million dollar stadium they built 7 years ago - while raising tuition every year. See any evidence of dumbass syndrome anywhere?