The first PV I bought, don't recall the brand, was the cheapest non-dispo at that particular store ($30). Thought it was pretty good as I slowly cut down the # of analogs I smoked/day. Then when I resolved to quite analogs entirely over New Year's I "splurged" and got a $50 cigalectric. Wow quite a difference, so I am excited for when my wife allows me to spend money again and invest in an even better system, perhaps a mod, perhaps I need more of a step-wise progression before getting there, I don't know but THIS IS WORKING!