Yikes, too bad you can't find them cheaper. They *are* a bit pricier than other paper but if you really need to keep notes from falling to pieces then its worth it. They also sell full size paper that you can laserjet a map or something on.
Right, gels don't work with this paper. Ballpoint, pencil, sharpies work great. Their Fisher bullets they sell have a special formulated ink for their paper and the pens are made to not rust. Ok, that's all I know about RITR.
Love the stuff!