I agree with you. I don't know why but the most disfunctional labs I know about are all in the US (Prof putting meetings on sat morning so everyone comes in to work on weekends...), although I know of some pretty bad places in Switzerland as well. You're also correct postdoc salaries higher in Europe (and developer ones are lower). However, there is definitely a problem finding postdocs also here. I should say that this seems to be not just academia, all my industry colleagues are desperate for applicants.