Imagine growing your own herbs, tomatoes, strawberries, lettuce, and more in your own home, without having to drag a bunch of soil into your apartment or house.  Grow strawberries in mid-winter.  Have fresh basil and oregano for your pasta sauce.  Grow medicinal plants if your state allows it *wink*.

Countertop hydroponics is simple, and plants can grow incredibly fast, and you know exactly what's going into their care.