Then the question is -- why is the upgrade cycle faster than that? I suspect that we upgrade less because the new feature is something we really need, but because we have a desire to chase after the new for its own sake.
With things like wireless units of all sorts, a short lifetime is better for everyone. Protocol improvements tend to allow better sharing and utilization of the same frequency every few years, along with faster speeds. The issue is one old device can slow all the newer devices down.
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Then the question is -- why is the upgrade cycle faster than that? I suspect that we upgrade less because the new feature is something we really need, but because we have a desire to chase after the new for its own sake.
With things like wireless units of all sorts, a short lifetime is better for everyone. Protocol improvements tend to allow better sharing and utilization of the same frequency every few years, along with faster speeds. The issue is one old device can slow all the newer devices down.