Pretty much only buy DVDs these days when they're cheaper than renting online (OK, that's relatively often). We have stacks of the bloody things in the garage on the off chance we'll re-watch them, but to be honest, the effort of sorting through a cold garage at 10pm or zinging up the usual streaming services with a tap of the remote, well, laziness usually wins the day. We are binging Alias on DVD at the moment after a box-set retrieval mission. We wore wigs.
I've not bought a CD for years. I think the last remaining player is in the loft. Downloads for a while. Now switched to a subscription so I can shout ALEXA, PLAY ROCK ME AMADEUS whenever I want to annoy someone.
As ever, build a backup strategy around how important the stuff you have is, can the data be replaced, and how much effort would that take...