If you're tired of your stuff getting trashed or have witnessed it, from bare/exposed/unprotected outlets or don't want to deal with potential risks, much higher quality or commercial level is recommended.
I've worked at retail chains before, and the number of undocumented cases of products being fried from customers that complained about their products not working right after storms or just plugged into unprotected outlets? ...I stopped keeping track.
As far as home theater audio is concerned, these help improve audio quality and still protect your equipment-
https://www.bestbuy.com/site/panama...surge-protector-black/8484641.p?skuId=8484641
A Magnolia Panamax is $500, pay for convenience of design and cool controls
But in reality as far as audio, this will pretty much do the same thing-
https://www.amazon.com/Tripp-Lite-L...lf_m_eyqmqohmdbh9pc4_ttl?_encoding=UTF8&s=aht
Tripp Lite 1500VA Sine Wave UPS Battery Backup, LCD, 1000W AVR Line-Interactive, 2U Rackmount, USB, DB9 (SMC15002URM)
Server rooms can run on this, so this is more than adequate for home users:
https://www.amazon.com/APC-Back-UPS-Battery-Protector-BR1500G/dp/B003Y24DEU/ref=sr_1_4?s=electronics&ie=UTF8&qid=1527285144&sr=1-4&keywords=apc+battery+backup+&+surge+protector
APC Back-UPS Pro 1500VA UPS Battery Backup & Surge Protector (BR1500G)
For less than $200, if you're running a gaming rig or workstation/server, might as well pick one up.
Low-end surge protectors can get the job done at some level, however, might as well get the real stuff if you're running a gaming rig or a workstation.
Given pricing, might as well get the battery backup units, because if a trip or outage or spike happens, and you're in the middle of an important job, project or gaming match, why risk it?
If it dies, just go out and buy another one. So invest in what's important to your needs. Some people get by just fine without spending more than $20 or $30 on a surge protector.
Like, if you're a stock investor or day trader, or iT specialist that needs to work from home, or an elite gamer that competes in top level online matches, and your systems aren't on battery backups, that's just too much risk without one, in my opinion.
If anyone wants to start spending several thousand dollars-
Battery backup racks include swap out charged-battery-units on racks, where power is constantly fed to feed devices in the instant of a power outage, while pulling out a unit will decrease the overall run time, it makes for easy replacements and swap outs when necessary; software helps with IT management
And like mentioned from earlier posts, don't expect battery backup units to stay true to their charge forever, like cell phone and laptop batteries as of today, not much is really going to outlast normal wear and tear. Brand and quality matter, but so does research- specific to exact needs.