WHY? WHY? It is an absolute waste of power. If something is so precious to have to leave it powered up 24/7 to be able to perform properly : something is wrong? And I am not trying to bang on some climate change agenda drum, saying this. The practice is but a smart cover for mild forms of neurotic obsessive behavior projecting airs and graces of 'preciseness'.. . Where did this 'leaving it on' romancing caper, start from ? From Hi Fi shop keepers and techie statements: since those people are working with it all day....IT IS convenient for them to leave it in...to be able to use or demonstrate something quickly, without then fumbling and look stupid , doing it.
So it became a misinterpretation: a case of repeating someone else 's habit: 'If they do it...why not I ?....they know what's best, don't they!'. Given their particular trade circumstances, it would /may be sensible . People then stating "we only turn it off if a thunderstorm is coming" overlook a simple fact. What if the thunder strike fits 'they are caught away from home when it hits', or ' being so dead asleep' -overnight -before they can get out of bed - the equipment takes a hit? All their good 24/7 work ...goes out the door.
Is that why at times, we see comments like " My ......has given up the ghost' ...or it has blown a ....circuit"? All put down to a 'failure'. Definitely not???!!!... some stray outside- home natural electrical spike they did not know about, 'super-powering up' their 24/7 equipment.
PS I would like to know if there is any 'greenie' here, that actually powers up their equipment up 24/7 in any case? That could be a mirthful situation to think about.