If you find yourself buying too many replacement coils, it is possible to rebuild them using your own wick and wire. This has a few advantages. For one, it's cheaper. Two, you can use different materials for wick and different wire to really tailor it to your vaping style. Lastly, it's a great place to start if you're interested starting to rebuild, but don't know where to start and/or don't want to spend lots of money on an expensive rba.
How to Rebuild Replacement Coil Heads - YouTube
How to Rebuild Replacement Coil Heads - YouTube