Career Choices: Delivering Mail versus Getting a PhD

Canada's main postal company, Canada Post, is currently undergoing a major overhaul because despite being a government regulated monopoly, it's actually losing money.  This has little to do with science and is probably not an apples-to-apples comparison, but here's an interesting statistic to consider nonetheless: 

• Current minimum wage per hour for a Canada Post mail delivery person hired after Feb.1, 2013: $19.14
• Average wage for a postdoctoral researcher in Canada, who has a PhD and probably 9 to 10 years of post-secondary education: $43,973.  At 50 hours per week that's $17.59.

I like getting mail, but really?