After reading through some of this forum and seeing others noticing the less addictive nature of vaping and realizing it myself, I did some research and found this: Safety Report on the Ruyan® e-cigarette Cartridge and
Section 2.3 discusses the fact that e-cigs in fact do not act like analogs in that they do not inhibit MAO levels in the body. I think this must be why the urge to vape is not as strong as using analog. Everyone is speculating that there is "something else" in analogs that creates a stronger urge. Well, I think this is it.
So, with this element, plus the fact that PG is a germicide, I'm coming to understand that e-cigs actually have positive health factors that should not be overlooked.