Unplugging assumes the human is reliable. Unplugging
assumes that destructive transients don't occur during normal
operation. Unplugging for protection a least reliable
solution. At £1 per protected appliance, the 'whole house'
protectors is more reliable and cost effective. Protection so
reliable that electronics in high transient areas just don't
suffer damage and don't unplug. The secret. Protection is
not defined by the protector. Protection is defined by an
item 'out of sight' and therefore 'out of mind'. The earthing
system. A protector is only as effective as the earthing
system it connects to. More reliable than any human.

Phisherman wrote:
The best protection is to unplug it when not in use.