Clarified butter is indeed good for many cooking applications. I like to do my venison steaks in it.
Ghee is a tad different, though for a lot of our cooking we probably wouldn't notice, but the butter is cooked longer to start to caramelize the milk solids before separating them. It's a tiny taste difference that doesn't matter unless you are going for an Indian dish where you want the added flavor of the Ghee. Some of the Ghee you find in ethnic stores also has different spices added.
I'm just bringing this up as I advise folks to check out ethnic stores, especially Indian ones, for you can find spices and tea that are much closer to what you see offered in ads in the 18th century...so IF you spotted some Ghee for sale at the same time while buying say gunpowder tea, and bought it, you might end up with a different taste than expected if you don't check the label. :shocked2:
LD