Another aspect of this is the fact many of those devices release a significant amount of radio frequency interference. Although mostly amateur radio operators and shortwave radio listeners are mostly affected that RFI does affect other electronics such as lights and TVs. Frankly, I wish the US govt would enforce its laws on energy efficiency and RFI more because they're not really that mutually exclusive barring switching power supplies (but even that to my knowledge is becoming less true as the regulator components are becoming even better at not producing as much RFI across the HF spectrum now).