Whoa, whoa, don't get all upset. ^_^ I would only take issue with your second item about "self-dispatching." Adding random units to scenes decreases safety and scene control, especially at roadway MVAs. Our volunteer crews are competent enough that they will request additional EMS if warranted. Is self dispatching needed? Does it save statistically significant amounts of time? If your times are so slow that it is needed, perhaps a QRU or additional ambulance are needed and should be considered.
I'm fully familiar with both paid and volunteer services (I've worked both.) and how it is to go to a station to respond. I find crew dynamics and CRM to be important and am a stickler for safety. I have worked in volunteer systems where crews could self-dispatch, and while some, such as yourself, may be competent enough to do so, I do not like the concept. Such an act means that, as a volunteer, I would represent my service without having my gear, which is on the ambulance, with me. Furthermore, I would be alone and not a part of a team. I do not feel safe with that.
I'm glad there are people that enjoy what they do!
Oh, and I've owned scanners and listened to traffic, although never LE/EMS/FD traffic to much degree.