A Kayfun isn't a dripper. It has the flavor of dripping, but it's a tank.
The major difference is you build your own coils and wicks. It's REALLY easy to do, only takes about 10 minutes for me to remove an old coil and build and install a new one. Coils are made from Kanthal Wire which you can buy 100 feet for around $10. You'll only use aboug 4-6 inches of wire per coil, so that's at least 200 coils for $10. For wick I just use cotton, and $5 will buy you enough cotton to last for years.
The idea of moving into an RBA like a Kayfun can be a bit intimidating at first, but it's actually really easy and once built works better than any retail clearo that I've found. Better flavor and better vapor. I used to think my Aerotank had really good flavor, and now I don't use it at all because compared to my Kayfuns it has no flavor at all.
Considering you can buy high quality Kayfun clones (Hcigar and EHpro) for less than $40, it's really hard for me to justify something like the Nautilus or Aerotank Mega.