I just accidentally found out that there are reprints of the legendary Altgermanische Religionsgeschichte of Jan de Vries!! There has been no reprints of it since 1970 and the secondhand copies are extremely expensive. De Gruyter, the original publisher, recently made available hardcopy reprints and an ebook versions (the latter are only available for libraries) of both the 1956 and the 1970 editions. The reprints seem to be a printing-on-demand and cost the staggering sum of 123 euros or 175 dollars per volume (I got my two-volume secondhand copy for that!). Hopefully when the costs of digitalising the book are earned back, the price will drop. More information here. (And use the search function to look for “Altgermanische Religionsgeschichte.)
I was curious if that title is available from Amazon Germany and there I saw the reprints for 175 euros per volume.
I am glad that there are reprints, but the price will have to drop drastically for this to become interesting.