These printing costs are a perfect reason to release out-of-print
paper books as "E-Books"

You can also set them up as "print on demand" so that people can have
hard copy without the overhead. I have done this with old documentary
films, and I have a few books out there too. There really isn't much
money in it, but it ensures that the content is available for future
generations. If anybody has anything that they want to do this with,
just get hold of me, I can take care of it for you, or I can give you
all of the information that you need to do it yourself.

TJ