I only listed what I am using, the 100's of CE4's and CE5's, and dozens of T3S's and MT3's, over 30 ego's and at least 10 rda's, I estimate i spent around $3K in the 10 months I been vaping. Have 10 brand new never used EGO 1100 mah on the shelf. On the bright side smoking 2 cartons of Marlboro's a week like I did for 40 years would of cost me between $4K to $5K in the same amount of time. So I am actually ahead of the game.