I ordered a box on Amazon, 40ft for $10. I also ordered some Japanese cotton, $9 for 100 pads. So yeah a LOT cheaper. Got the cotton as a backup in case I don't like or can't get the hang of the rayon.
My thinking is, this stuff may help solve the wicking issues I have with my Themis Mesh RTA, I have to pack the cotton super tight under the mesh coil but have to thin it out by a lot for the juice channel... from what I've seen in tutorials this is exactly how you should wick with rayon. I don't do any low-wattage builds anymore, I so SS316L in TC 100% of the time, highest resistance build is about .26 ohms. I also have several Digiflavor Genesis style RTAs, organic cotton works well but I'm looking forward to testing with the rayon.