Mushy & TypeA:
We're all on the same wavelength! I too feel there should be distinct boundary lines for liability reasons, and so as not to confuse the patient. Many patients want to call my dad "Dr." because of what he does, but he just laughs and says "that's my wife!". He completed his training in Des Moines, and was even offered a spot at DMU to get his D.O., but was completely happy with nursing. Besides my husband, he's the most secure man I know!
My mom and dad have a very good approach to the whole nurse/doctor separation IMO. Being as my mom was a nurse for a long time she knows the thanklessness and crap that can go into being a nurse so she treats her nurses with respect. My dad, seeing the crap my mom had to endure through med school, has a lot of respect for her as an MD. The neat thing is watching them confer about patients and asking each other advice/opinion because each of them has their niche. Plus, even though my dad is a CRNA, he's been working in ORs for 28 years and has seen a thing or two and his input is very valuable.
You are right that there is good money in it - my dad said in the area he works a new grad can start at $150K. That's really, really good IMO. If the Anesthesiology Assistant program was available in IL I might have gone that route instead of opting for med school (but believe me, I'm happy where I'm at!!!!) and nursing working toward being a CRNA is a viable option for me in the event that I don't get into med school after 3 tries (better be only 1 try!).
Personally, I want to be close to medicine. No, I want to be in the middle of it, up to my elbows in it. If it's not in the cards as a doc, then it will be some other route (e.g. nursing) because speech therapy, while a GREAT career, is not for me.
*whew* long-ass post!