There is a very expensive power conditioner that I have seen which gradually increases and decreases the AC power when turned on/off (its at audioadvisor.com). So if you are worried about a big voltage spike, this would take care of your concerns.
I think remote powering is a very big issue. I have a stereo in the bedroom which I need to be able to have remote-on to wake up and remote-off when falling asleep. I don't want the amps on all night so it makes sense to power these on/off and leave the other stuff on all the time.