I just went and bought a few more, so hopefully, I'll have enough for a long, long time. I love the Nalgene polycarb's, and ain't too worried about what they did to release the "bad, bad" chemicals. Are all the outdoor stores going to pull all the lexan coffee cups they offer?

I would be interested in steel or alum if they were single walled, so that you could boil water in it. That would be nice.