That is the dilemma. Folks starting out don't want to spend a lot of money on something that 'might not work', so they spend a little money on a tiny underpowered device.... that doesn't work very well.
I have to disagree to a certain extent. I did a lot of research and started with the eGo C kit and two Twists. I wanted a middle of the road device but not a cheap cig alike. I wanted to give this a fair chance to work. I saw it had possibilities after reading all the success stories here, but with all the failures I had, I wasn't willing to trust completely this would work. Well, my set up worked. The only thing I upgraded was to the Vivi Nova from the cartridges that came with my beginner set. Those cartridges should never be sold at all! After two months of no cigs, I am still using and satisfied with my Twists and Vivi Nova.
in. For myself, I didn't know if vaping would work for me. Nothing else worked to get me off of cigs. I couldn't justify in any way spending that much money on something I wasn't sure would work. Now that I know that this method will keep me from smoking, I have no problem with spending money on the Provari. I have asked for one for Christmas. If I do get one, I will continue to use my Nova's until something that has even less fiddling comes out.
And I'm interested in rebuildables because I enjoy tinkering and well, the whole idea just seems interesting.