If you're talking about part time rates, that's nothing special. Some foreign teachers wrongly believe that they're getting a good deal for such fees as many a training centre will take French speaking Africans and Russian students on for between 50-100 a hour. Don't be so f**king desperate and demand more. Desperate teachers with nowhere else to go ruin things in China for everybody, not to mention foreigners with more respectable jobs because many of us are thought to be 'dirt poor, sleazy, English teaching scumbags.'

But marrying just for a visa? Sod that, obtaining business visas or even legal employment is very easy. If you have to MARRY for a reason other than love or accidental impregnation, you're probably not one of life's winners.