Regarding Joe Offer's post, one more note.

Joe mentioned the Bear Family re-issue,
an expensive collection
(as is typical of Bear Family).

Those Bear Family issues
are thin on the ground.
You can look them up at second-hand shopping websites:
some individuals have theirs for sale.

But the stores that sell in bulk,
whether it's Amazon dot com
or the Bear Family online store itself,
have posted messages saying
that this edition is no longer available.

Sounds like it sold out
and Bear Family stopped printing them.