|One of our storage areas for spices and dry goods|
Well, first and foremost is basic laziness. If it is pouring rain out (210 inches so far this year in Boquete) and I need an herb for a sauce or soup, I am not venturing out to pick fresh. Plain and simple.
Another reason is that I only have some herbs available only part of the year. Even though I live in the Tropics and the weather is just about always in the 60's to 70's, some herb gems like Marjoram and White Sage seem to have to leave me for half of the year. Some love the rain...some love the dry.