DC and Marvel are both bad where some big collection in a series will go out of print, yet this volume is not available and used market are crazy expensive. There are plenty of Omnibuses or series books like this in both their catalog and in some ways Marvel is worse about it as they don't have the back list warehousing like DC, which has kept many, many collections always in print.
Marvel has had much better luck getting the greater proportion of the old 60s-70s super hero stuff in reprint at least once, but they never stay in print. DC's reprint on books is madly inconsistent, but on some later modern series like Vertigo and others, they have been a big part of the the whole trade reprint business existing. Those series trades are why there is that kind of business now, as they kept popular series in print comic back lists going.
― earlnash, Monday, 5 February 2018 22:26 (six years ago) link