I think the whole BPA thing is vastly over dramatized. (If you actually go through the research materials on how much heat and chemicals they have to put into these bottles and for how long to get them to leach anything registrable (and still well below standards) it's amazing the bottles even hold up to it at all.)

I'm betting it's a matter of time before someone finds something wrong with the new miracle stainless and aluminum bottles and we are on to the next fad. After all, they have to be leaching trace amounts of at least their host metal into water and you can get metal poisoning. Imagine what they might do if you left them boiling bleach for 3 days straight and then drank out of them...

(yes, I'm refusing to throw away my perfectly good, BPA contaminated, Nalgenes).