The Provari is an awesome unit and hands down the best APV I own. Its not VW but thats irrelevant considering you just adjust the voltage to your liking instead of adjusting the wattage to your liking ( side note: there is no such thing as VW, the unit adjusts the voltage to acheive the desired wattage) if you want to use an eGo threaded juice delivery system on it you just need a 510-eGo adapter. No big deal. I do understand people not wanting to spend $180 on a unit. thats steep for anyones budget.