I suppose it all depends on what your goals and objectives are.
Others have much better luck than I did and are quite happy to continue using pre-built coils.
- factory coils can last a week ($15/5=$3)
- 30ml of juice can last a week ($15-$30)
- Smoking analogs ~$50 a week so vaping offers a savings of $17-$32 (32-64%) a week
Others have much better luck than I did and are quite happy to continue using pre-built coils.