When I was vaping I had to replace the coils every few weeks and cleaned out the mouthpiece, liquid container and stuff in an ultrasound. Also, I mixed flavor liquid with the nicotine liquid and had to watch out for the right mixing ratios. I’d say that’s all a bit involved and a bit much for those that just want a hit of nicotine.
Sure but that’s not how it works now. I doesn’t really matter how it worked in the past since the single use vapes are sold today.
https://www.vapvapor.es/aspire-avp-pro-recambio - you only have to change this part, that’s all the maintainence. Also, smoker’s convince is not a reason to throw batteries in the trash.