^ me too. Here's why I think it is my medium of choice, aside from the fact that it vapes excellently.
1. My preferred method to build coils is to twist a coil around a micro sized blunt tip needle and mount it on the rba. Then I like to adjust it (with the needle still in it) to my preferred optimum location.
I found that wrapping around a wick doesn't yield a small and tight enough coil for my preference. Additionally, for me, making adjustments with the wick in place is not as precise.
2. I enjoy the tinkering aspect of rba's, like rewicking and recoiling on a whim. I have never needed to do either, but just LIKE to. This would be a waste to use Nextel in my case
3. Cotton just appeals more to my "I quit smoking to stop putting dangerous chemicals into my body" logic. I'm not saying that I think that Nextel is unsafe, I'm just saying that I feel better using something that I absolutely know is safer.
4. I like to wash out my RBAs ever week or so, why waste Nextel like that?
I love cotton too. cheap, damn near natural and simple to use and replace. best wick material IMO.