I think your math is off by a factor of ten: $5/month * 12 months/year * 10 years = $600, not $6,000. I do agree with the general point, though, it seems like e

I think your math is off by a factor of ten: $5/month * 12 months/year * 10 years = $600, not $6,000. I do agree with the general point, though, it seems like education is a really tough market to monetize as people are very price-sensitive.