As supply grows and the costs of production drops, the market gradually pays less per unit of product and all producers must adopt the technology to become more efficient and survive. Make no mistake, this increases the stress on producers. In most of today's agriculture, tractors are a fact of life. They are now such a widely used technology that they seem a normal cost of doing business. These adopt a new technology late or never.
Some farmers never adopt a technology because it is inappropriate for their operation.
The Amish, for example, still compete within the context of their chosen life style without tractors. Others refuse to make the change or cannot do so. The latter ones compete in a larger market that uses the technology and often do so at a serious disadvantage. Most farms that did not switch from draft animals to tractors passed out of business. Ideally, this should include both well-controlled research studies and the evaluation of the idea under practical conditions.