http://economix.blogs.nytimes.com/2013/10/31/planned-obsolescence-as-myth-or-reality/?_r=0
Planned obsolescence is the intentional act of producing consumer goods that rapidly become obsolete and so require replacing. This can be achieved by making frequent, unnecessary changes in design, termination of the supply of spare parts, not allowing for forward compatibility or the use of nondurable materials. There are a number of familiar products that can be characterized as desgined according to the standard of planned obsolescence. One specific example is ink cartridges. Some cartridges are designed with smart chips that prevent them from being used after a certain threshold of usage, even if the cartridge still contains usable ink or could be easily refilled. Some consider Apple’s product development strategy to embody the concept of planned obsolescence. The iPod Nano, for example, like other Apple products typically receives an update every 18 months or so. This in itself does not embody planned obsolescence, but rather the actual updates that are made meet this characteristic. The design of the iPod Nano has oscillated, over seven generations, between a square and rectangular form factor. It is highly improbable that the designers at Apple were continuously changing their minds as to which design was superior; rather, they were motivated to create a product that was significantly different in appearance. This leaves the previous version looking more obsolete than it would have had they maintained a similar appearance. And thus consumers are driven to more frequently purchase the newer generation of the product, even if the one they own is in perfect working condition. Another, perhaps more insidious claim of planned obsolescence at Apple is their release of software updates that both slow non-current generation devices and decrease their battery life. But is this intentional, or just a side-effect of developing software for the better hardware and battery of the iPhone 5S?
Even if this is a deliberate attempt to push people to purchase new iPhones, there is nothing illegal about this design philosophy; however, the ethics of planned obsolescence can be openly debated.
Is it ethical to engineer a product that is intentionally designed to have a life span that is shorter than maximally possible with minimally more engineering effort? Is it ethical to introduce product updates with the principle purpose of making previous versions obsolete and encouraging people to purchase new versions of the product? Those that would argue planned obsolescence is indeed ethical may make the argument that it promotes innovation and provides an incentive for corporations to innovate at a quicker rate. If Apple knew that a product they engineered could be used by consumers for 10 years without failure, then they would have a smaller potential return on the product, and thus invest a smaller sum of money into its development. This could lead to a decreased rate of innovation. If they engineered the product with a shorter lifespan, then they could anticipate a greater aggregate revenue because consumers would be purchasing more goods over time. Because the company would see an increased revenue as a result, they could invest more money back into technological development and innovation of their product.
It should be noted that the above argument for planned obsolescence assumes the product in question is something that can technologically benefit from a greater research and development budget. This argument would not support the planned obsolescence of something like kitchen gadgets, for example. Take the arbitrary example of a can opener; if it is intentionally constructed to be brittle and break after some period of use, there is no benefit to the customer in purchasing a new can opener. There will have been no technological advances made in the field of can openers since the last one was purchased.
While planned obsolescence may increase waste and environmental damage, it can be a force that drives the ever improving production of technological goods and services.