'I get it' too now.
I started with RBA's last week, got a RSST and a AGA, did a few builds with normal coils (1.8ohms) and 400 SS mesh, wasn't bad in the RSST, but nothing WOW, but was not very good in the AGA, so was recommended to try cotton for wick and micro coil, it improved the RSST, but again had wicking problems and nothing great in the AGA. Then yesterday, I got organic cotton and did a 1.1ohm micro coil for the AGA......BANG it's friggin awesome, tons of flavor and vapor, really is the best vape I've had so far.
The only thing that scares me now, is can I do the same build again when I need to change it, but will worry more about that when it comes to it.
I've used carto tanks and clearo's, and right now the setup I have on the AGA, blows them all out of the water. I will still use carto tanks for when at work, as the RSST and AGA not very travel friendly, if not standing up, tend to leak quite a lot, the AGA especially, but they are now my at home choice.