I'll second coil building. I think a person has to have an aptitude and of course a propensity to enjoy the activity. But with that said, it opens up a whole new world of better flavor, better fog, more control over battery life, better coil life, reduction of cost, and a plethora of atty options, and mod options, e.g. any atty can become a TC atty. Coil building transitioned vaping into a hobby for me. Of course that bloomed into dyi juices and moding as well after time but that was the beginning.