Changes, we never know what it is strain wise unless we grow it ourselves. The dealers rarely know either, but will be able to tell you if its as good as/better than last time.

Someone put it to me recently that the markets dictated it. 10 years ago you got nothing but solids, then semi decent weed and occasionally something like skunk. Now its all skunk-type stuff. To be honest, I suspect most dealers are growing it, and its no longer imported.