Aside from making batteries that last longer, etc., what could be done to ecigs to make them more acceptable to analog smokers? People often comment that there is "something missing" in e cigs. Would this just be the MAOIs etc. that are not present in c cigs, or the inability of the e-liquid to be absorbed rapidly in the lungs, or something else? If ecigs were "as good as" analogs, everyone would switch. Why can some people make the switch easily and some not. If those who vape are getting the nicotine they crave, then why is it hard for some analog users to make the switch to ecigs? - for example, my husband! What are your opinions on what's "missing" and would there be anything that could be done to ecigs to make them seem mroe like analogs? Thanks.