I had a lot of trouble actually finding m-discs where I live. That's concerning. I eventually hunted some down. I asked myself, do I trust a HW wallet to survive 10 years? Not sure I do. Eventually I decided I don't have to. If in 5 years I decide on a different storage medium, I'll just copy my files over.
I use emotional manipulation and half truths to convince people to give me there money in exchange for a product I convinced them they need, but they really don't.