This is largely good advice with which I agree. However, I suspect that many new beads sold out of Nepal (and said to be "Tibetan") are actually made in India. In the future, more and more beads will be made in China, and sold in Nepal and throughout the Himalayas as "Tibetan" beads. Though presently many already are that. Particularly "zi" and other agate beads—as we all know.

Jamey