Hello all, I'm looking to move into a tank/mod setup from the casual e-cig and e-cigar that I've used in the past. I like the look of the Aspire nautilus mini and Kanger Aerotank mini but I'm curious on how long do the coils and other parts need replacing? I don't smoke analog cigarettes at all and when I did smoke analog clove cigarettes, I would smoke two to three a day. Thanks in advance for any input that I receive.