But federal minimum wage is lower in US then in Poland (real value not even PPP) - 31.4PLN/h with ~3.9USD/PLN exchange giving ~8USD/h). Freaking Poland.

And when one comperes wages - PPP should be used. US is really expensive compared to the most of UE. But even then it is not whole picture. For example I can live comfortably with one car in my household. In US I would need 3.