YMMV !
A serious commitment would be reflected in the financial expenditure. Though plenty of vapers get by with intermediate hardware and are perfectly content with that. Form factor can also be an influence on what hardware to use too. Big, hefty devices simply aren't practical in some circumstances such as driving or in the work place, etc. So a particular kind of device would be used depending on the environment a vaper may be in. Lots of people choose to make vaping a hobby, and there really is no limit to the number of vaping devices in their arsenal. But there will always be a "weapon of choice" which a serious vaper will choose from their arsenal, whether it's the latest thing, it's ability to perform well or, just because it looks good. The vaping community is made up of an eclectic sociological group of people and there is no one universal reason for a person to continue with their vaping habits. Studying an online forum, such as ECF (electric cigarette forum) for a prolonged length of time could enable you, or anybody else, to understand the nature of the sociological group that makes up the global vaping community.
So, if a person spends enough time gleaning or gathering information about hardware or e liquid solutions from a social forum like Ecf, whether they are conscious of it or not, they in fact are also gaining a better understanding of the sociological group.