So much "not real world party line" here....

Those little power strips are worthless. Everybody has a story about their brother's barber's butcher's nephew who had a direct lightning strike but his 8 dollar power strip saved his computer.... no, it didn't.

Invest in a whole house power surge suppressor that connects to your panel. That is really the only way to protect anything. Then buy a Un-interruptable Power Supply and plug your computer and monitor into it. If you are in the middle of something and your house loses power you get 20 minutes to shut down gracefully and you won;t lose work.

If your house power goes out, please explain to me how a piece of electronic equipment with no ability to think, like a synthesizer, can tell the difference between the power going out, you pulling the power cord out of the wall, and turning off the switch. And as far as "the start-up routine some equipment needs" that all happens AFTER power is applied and again, a piece of equipment is brainless and doesn't know HOW power is applied, just that it has had 117v of power applied to it.

You DO want to turn mixers on before amps, and shut amps off before mixers, so if you are powering up a mixer and an amp, yes, power the amp off before you hit any master switch. That is because mixers will toss of a spurious spike when they power up and that will potentially damage speakers if that spike is amplifed by XXX watts.

But on topic, there is no reason to turn things off and on individually. Nor is there reason to be plugging an unplugging 1/4" cables. My stuff is all in a 44 space server rack with a 24 outlet power strip plugged into a Furman power conditioner. I turn it off and on using that Furman unit. WHEN I even bother to power off. If I had tubes I would worry about heat. With solid state gear I don't really consider heat. Given that I don't go up there every night I probably should power it off but only for concerns about the electric bill. The computer up there never gets turned off (none of my 6 computers do) though I do turn off the flat panels and power off the powered monitors. I power those monitors off in case the computer should crash, which powers down the USBs, which powers down the interface, which sends that same spike out to the monitors, which is then amplified by 100w. Plugging and unplugging, powering off and on, you are actually shortening the life of the 1/4" jacks by engaging and disengaging 1/4" plugs. (plugs are male, jacks are female - those terms are interchanged too often. a plug goes into a jack.)

It's a destination.. it's a journey.

Much of this you could find on Google, btw....