Indeed. The cost for WTA outweighs the negative health you purchase with cigarettes at a higher price point than any WTA currently on the market. That said, there are strains of tobacco that are safer to use as a starting point than others, this is due to their inherently lower naturally produced WTA.
Eventually, we will see some amazing things happen that will make cigarettes fully obsolete, but as it stands now, vaping makes cigarettes obsolete to begin with. WTA is just another weapon in the arsenal of harm-reduction.
For those of us that don't respond well to nic-only and need the full spectrum of natural alkaloids, WTA is the way to go. For those that don't, normal e-liquid should suffice. On the other hand, if you're vaping and feel like a cigarette might be good right about now, certainly grab a couple bottles of WTA. Your lungs will thank you.
Also, bear in mind that both vendors that make WTA currently offer a wide selection of tasty juices. Vaping, with it's wide range of selections, options, and flavors, will never die. It's like a world of innovation coming to life.