This is certainly an epidemic, and I blame ECF!
Really, we see all the mods, batteries, coupons, new releases and it's like "OMG! I _______ need it!"
In my first month my cousin and I got 4 eGo's, 2 each to get us going, 2 eVics, one of which I swapped for a Vamo today when my control head broke T_T, a Protank, a Smoktech carto tank, and more juice than I even want to try to list. Total expense: ~$600
And that's just what we didn't give away. In truth, we have bought around 20 eGo's because we keep getting our friends into vaping and give them one to start with so they just need a spare battery.