Posted: 02/04/2014 at 11:36
Hydroponics has its uses. I know two people using it. One on Christmas Island has shade tunnels full. They are raised off the ground because anything growing at ground level is eaten by the red crabs They grow tomatoes and other salad veg, because flying in fresh fruit and veg adds ten australian dollars per kilo to the cost. Same cost on Cocos Keeling island (same plane!!!) and so one of the islanders is starting to do it for the same reason. Fruit and veg sent by ship can be rotten before they get it.
However if you live in a city, with truckloads coming in to the supermarkets daily, its just not cost effective.
...and nothing beats the taste of just picked home grown(in soil in your own back garden or allotment)