I have switched surge protected ext behind my TV unit. I just think if you not using them all then safer for the others not to be on. I have spare socket available on it, for eg. The vac, fan it may just be me but for peace of mind I prefer switched.
Save power / safer / doesn’t cause wear on some products with the PSU being on all the time
I'm clueless when it comes to electricity, so can I ask what are the disadvantages of not having individual switches?