What has been beaten into me over the last 30 years

What has been beaten into me over the last 30 years is that They will take away My Stuff if I don't outsmart them.

it started with software, so I stopped installing anything that wasn't open source. Then it was music, but for most things in most years I could buy CDs, rip the CDs, store the music digitally and put the CDs in boxes in the basement.

Then it was books, and I thought that we had reached an equilibrium where most of the booksellers would send DRM-free epubs and I would be happy to pay them; and a few wanted to send DRM-free weird formats but I was willing to do conversions. But mere conversions aren't enough; the Beast That Exerts Excess Market Power has decided that their customers aren't allowed to get DRM-free copies of the work that was advertised as DRM-free.

So I will not be dealing any more with them, and you shouldn't either. They might still be the best way to get a hardcover delivered to my door, but I only buy those now for authors I have a high desire to coillect signatures from.