You make a very good point about genetically modified organisms(GMOs). As you put it, GMOs hold great promise for agriculture, especially in developing countries, where food shortages abound. Despite your well-intentioned comment, I, however, think it's unfair to lambast biotechnology companies, such as Monsanto (http://www.monsanto.com/biotech-gmo/asp/topic.asp?id=ImprovedEconomics), for the way they do business. Developing GMOs products is an expensive venture requiring billions of dollars. It only makes business sense for biotech companies to require that farmers procure seeds from them every planting season. After all, farmers are bound to make huge profits. Why not re-invest in quality seeds?