I have been vaping for a few months now and I started off like most with regular stick batteries. Now I use a VV Foxy Mod Box and an other VV mod box that was made from a friend for backup. I think I'm spoiled. I can't seem to get back to using my stick batteries. I'm always looking at different mods that look awesome and are quality, but they are one voltage or use different types of batteries to change voltage. My question is why would someone get a fixed volt device after using a variable voltage pv?