It is pretty rare for me to buy movies on physical media, but I do sometimes buy some. I only really buy movies that I would want to share or watch again some far time in the future and don't want to risk getting de-listed from whatever streaming sites I have access to.
The vast majority of video content I consume I probably wouldn't watch more than once. But in the rare cases where I'll probably watch again and want to share it with the future, I'll buy it on physical media.
I do this for other physical media as well. There's been some music I have on vinyl or CD which I can't find on Spotify or for digital download. Most music I wouldn't care if it disappeared tomorrow, but some I'll want to have in the future for sure.
The vast majority of video content I consume I probably wouldn't watch more than once. But in the rare cases where I'll probably watch again and want to share it with the future, I'll buy it on physical media.
I do this for other physical media as well. There's been some music I have on vinyl or CD which I can't find on Spotify or for digital download. Most music I wouldn't care if it disappeared tomorrow, but some I'll want to have in the future for sure.