DRM-free versions are [almost] always available somewhere. If it's DRM-free, I will buy it if I like it. If the DRM-free version isn't for sale or I can't easily circumvent the DRM, it just means it came from the high seas instead of a local media store.
And don't even get me started on how often TV shows aren't even released on DVD/Blu-ray/4K. Again, I can't pay for it if no one is offering to sell it to me.