I wasn't interested in canning at all. I discover that I'm really kinda into it, and bam, twelve days later I learn that the canning jars available to me are toxic. Yup, there's BPA in the lids. I'd admired those beautiful German jars with glass lids, but found that they were pricey, and I'd have to get them shipped. (Turns out you can get them from Illinois, which is a tad closer than Germany.)
Though I sometimes like being forced to use a better product (obviously glass lids are better for food), I'm still trying to dig up all my Sigg bottles to trade in by Halloween, since they, too have BPA in the liners. Ug, as if we don't absorb poison enough without this!