I think the mos interesting feature it you can BARGAIN with the hospital and the doctors. I had a similar experience in Hawaii, where a 2 hour stay in emerge (don't ask)  generated a $14,000 bill. The amazing thing is tha ton advice from a friend , some vigorous lobbying and letter writing reduced the bill by 50%! 
Imagine in Canada negotiating with the EHS to reduce a $1500 ambulance ride.