I've been vaping for just over a year now, and so far I've had 3 Ego styles (1 dead, 1 as back-up, 1 stolen by wife), 1 20W iStick (dead), 2 IPV Mini V2 (1 dead, 1 still working, but no display - makes life interesting guessing where it's at), 1 Provari P3 and 1 Provari 2.5 mini. My Provaris...