Interesting post. I'm not that big of a yogurt fan myself, but I do like it from time to time. Actually, I probably wouldn't miss flavored yogurt at all, nor plain (sorry, Doreen), but oh my, I could eat tzatziki every single day of my life, even if I had to make the yogurt from scratch all the time.

A former Indian coworker of mine (still Indian, I presume, but we no longer work together) told me that in India they basically just have a running culture and always have some brewing. I've also found that the homemade is not runny once you drain the whey from it.