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.