Not sure I really understand the point of Vaping if it's not a substitute system to ingest nicotine. 
edit...Not trying to be critical but I really am puzzled. I get that vaping can deliver nicotine without many of the harmful chemicals found in tobacco smoke but if you don't smoke in the first place why anyone do it?
No worries....I'll do my best to explain.
First, it's similar to something else we like to do: chewing gum. There's no real point except that we like it and it tastes good. Vaping is similar. Except unlike chewing gum, the flavours can be so complex, as to be unbelievable. For example, I sampled a limited edition strawberries and cream today. Made by a real pastry chef. You could taste the sweet strawberry on the inhale and the cream came on during the exhale. It was incredible! I've also had a Swedish Pastry. You could taste each element. The buttery pastry, the almond and cinnamon. I have no idea how these vapes can be so multi dimensional, but it's very pleasant, very good. And hard to believe until you try it. And unlike chewing gum, when you walk into a vape bar, there's 200+ flavours. I'm vaping peppermint cucumber right now. It has that fresh cool mouthfeel like sucking a mint (yes, you get the fresh, effervescent feel too) with a pleasant fresh cucumber thrown in. It's just...nice. I had canolli vape with my coffee this morning.
Second, as a cigar smoker, it's very satisfying to make huge plumes of "smoke". This love of plumes is so common there's actually a term for this type of vaper within the industry: Cloud Chasers. To that end, they actually make special equipment for cloud chasers.
So for me, those are the reasons. The complex flavors and clouds for me. And I'm not alone. When I was in the bar today, I'd say the mix was 50:50 between smokers and non smokers getting their vapes. You can tell because people ask for a certain level of nicotine when buying their vapes. At least half the people requested "zero".
Not sure if this answers your question or not...
