Dear Electronics Manufacturers, Stop Keeping Me Up at NIght

Years ago I recall reading an article noting the reason why electronics devices have bright LEDs is that manufacturers want consumers to pay more attention to their product on show room floors, but most of us don't live in a showroom, so why do the LEDs remain at the same brightness?  Honestly, I'm going to blame some corporate marketing genius, but I HAZ SOLUTION!

Photo resistors, that's right, simple photoresistors.

Manufacturers could readily embed one or more micro light sensors, that would provide feed back into the power supply of any visible spectrum LEDs.  Using a relatively simple PWM on the power of the LED, your device could dim its lights in real world conditions but still be annoyingly bright on the showroom.  

Unfortunately the reason technology like this isn't implemented isn't a result of lack of technology, it's a result of lack of incentives for them to make this feature common place.

7/15/15 Follow Up

Option B, instead of using circuits that add to the cost and complexity of manufacturing electronics lighting, sticky pads.  Using the same style of adhesive that painters tape and Post It Notes (tm), make pads of material that are designed to cover individual LEDs.  A company could make a generic pad that covers a given area, read a square of material, or you could get customized pieces that more closely match a given device.

The reason for this, I hate putting pieces of tape on my electronics, but it seems like it is the only way to ensure that my bedroom isn't a damn glow cave