It probably depends on how much you trust the people handling them - scratches don’t just happen, nor apparently can you trust people to report them, nor return the same DVD as what you sent them, etc. In an ideal world… well anyway, we don’t live in that.
I had it many years ago and it was great. I was actually thinking about signing up again for DVDs by mail.
I wonder how viable it is for someone to start a business doing this?
Not viable at all.
Most people don’t even have optic drives.
It probably depends on how much you trust the people handling them - scratches don’t just happen, nor apparently can you trust people to report them, nor return the same DVD as what you sent them, etc. In an ideal world… well anyway, we don’t live in that.