Lack of proper funding has to be on top of the list. Most services here in the north country can't afford to pay EMTs what they are worth. I am a career EMT (over 120Hrs a pay period), and have to hold two other part time jobs to keep afloat. Equipment and supplies cost too much, and insurance companies pay too little.
We also have a lack of funding for proper training, ie real life like scenarios and seminars.
This, I believe, still stems from the fact that we are yet to be recognized nationally as professionals. The fire service is nationally recognized, the law enforcement service is nationally recognized. we have the NREMT, thats it.