JimmyTheWeed, to answer your question I think Spannersatcx has got it spot on. I have in my younger days done a lot of outstation work which covered the USA. As Spanners says most of the "mechanics" have a second job. The salary is quite poor when compared to UK and the rest of EU.
The work ethics are not very good as you are the slave to your manager, which is the impression I got when working at stations like EWR, JFK, BOS, LAX, MIA.
Do youself a favour stay within the EU for work and use the USA as a place for a good holiday.
Good Luck.