Excellent advice. Thank you. So basically, the only recurring costs would be the e-juice and the coils? I'm surprised at how cheap those are - basically R50 a pop. . If I use one bottle of e-juice per week, and replace the coil twice a month, that should work out at around R400 - R500 per month. (Assuming I buy liquid from Vapeking at R80 a bottle.) Can you explain to me the difference between a 1ohm and 0.5 ohm coil?