The 60s and 70s stuff have gone up accross the board. Some of the 80s stuff has. Very little of the 90s stuff has, with noted exceptions of lower run series that became classics and first appearances. I sold off probably my most valuable comic from the 90s, the first appearance of Deadpool.
Some of the stuff I got like my long box of Robotech comics, even though they are indie, low run comics, just don’t have the audience for value. Some of what I have I do love still for the art, but there are tons of issues in high grade condition out there.
One little subset of collecting is people seeking super high grade graded comics. Certified 9.8 or higher can bring a stupid high premium.
Honestly, now might be a good time to collect for value, as the most popular runs are barely breaking over 100k issues. Scarcity is one reason why the older stuff is going up.
But i dont really collect anymore. I am getting new Shadow books and that is basically it.
