On Mon, 06 Jan 2014 17:29:16 +0000, Peter Parry
wrote:

This requires a power supply to draw no more than 0.5W under no load
(reducing to 0.3W in 2015) and be of certain efficiency. Linear power
supplies cannot meet these requirements.

I guess it depends on the application; if it is something that is
plugged in and switched on all the time whether it is in use or not,
may be this is beneficial, but for something you plug in when you need
and unplug when you do not, does standby current really matter?