I already did, over a decade ago. I tell friends "No cloud services on this ship!". They've bought into it too, buying more CD's, records and dumb only TV's.

My current setup is an old 1080P Bang & Olufsen setup. Looks and sounds great. Similar with audio - B&O did airplay back in the 80's called master link. So each room in the house can play music from anywhere else.

The only things networked are actual computers and phones. That's more risk than I want to handle, no need to add more. Similarly I've passed over smartwatches for good quality Swiss watches that'll still be worth something in 18 months time. I swear I'm not some character from a William Gibson novel.

I expect at some point old school offline stuff will make a comeback like Vinyl has. Society lags a good 10-20 years behind the frontrunners. Sometimes more.