My miserly side hurts thinking of "throwaway" devices in landfills: As a device ages, the customer learns the vendor has no interest in the holder of the physical property amortizing retail cost over time. (Case in point: Verizon leaving my HTC Incredible at Android 2.3).
Declining the "cult of the new" leaves one searching for solutions to stretch a device's useful life past the sales department's intent. FLOSS promises hope, and success amortizes other costs, including the environmental costs of manufacturing.
I don't want Linux surrendering those goals, especially where the vendors intentionally profited by FLOSS shortening their development cycle.