I understand some of the reasons, but not all.
For example, I buy used or reprinted academic books, such as the set I've been buying: 'Library of Christian Classics'. It's from the 1950s and they haven't even been updated, just reprinted and not even in hardbacks, just in flimsy, often lightweight editions clearly very cheaply. Yet despite this some sellers still want nearly £30 for them. They are flimsy paperbacks that usually go for around £10; not only that, but some are used copies.
What is going on?
For example, I buy used or reprinted academic books, such as the set I've been buying: 'Library of Christian Classics'. It's from the 1950s and they haven't even been updated, just reprinted and not even in hardbacks, just in flimsy, often lightweight editions clearly very cheaply. Yet despite this some sellers still want nearly £30 for them. They are flimsy paperbacks that usually go for around £10; not only that, but some are used copies.
What is going on?