How is the expansion of high elevation tea farming affecting the tea industry in Taiwan?

The development of large, high elevation farms by both private farmers and corporations has an effect on the tea industry. 

Some family run farms that were successful in the past have joined the competition and invested their profits in expansion and larger scale production, separate from their original home based cottage industry. 

Not only have large plots of high mountain real estate been developed into tea farms, but large modern processing facilities (tea factories) have been constructed that have changed production methods significantly, decreasing quality. 

The environmental impact of this development is a point of controversy in the Taiwan tea industry.