e-Cigs are not for quitting
This is a common misconception with e-Cigs. They are not, and have never been a device to help quit smoking.
In order to be a quit smoking device, they would need to be classed as a medicine, which they are not. Simply put, they are an alternative to smoking lit tobacco.
I've been using ecigs exclusively for approx. 2 years now. I am however, still a smoker in every sense aside from the part that involves tobacco (and the lungs)
The problem being faced currently by ecigs goes beyond that of government & tax. There's also the fact that big pharma is getting more than a little upset by people choosing to switch to e-cigs and forgo the traditional NRT (nicotine replacement therapy) approach.
Then there's the lack of understanding in the wider sphere as to what vaping actually is...