You can also buy chai in K-cups. Timothy's and Gloria Jean's both make a fine chai, and Bigelow has an unusual green tea chai. For Tassimo machines, Twinings makes a chai tea latte T-disc. If you use a machine that takes the flat generic pods, you can get chai by Melitta, Organa or Solera.
For those who really don't like tea, you can always enjoy these spicy combinations with coffee instead. It's usually just called "spiced coffee" that way, but it can be just as delicious.