If you look up a copy of the Overstreet Price Guide from 1990 on the Internet Archive, you will find a large number of 25- to 35-year-old titles that were selling at the time for more than $1,000. If you did the same thing today, you would find only two. Add to that 35 years of inflation and the fact that comics in the Silver Age ranged from 10 to 15 cents, while in the 90s, the titles were more likely to cost two or three dollars.
So, what changed? There were cultural shifts in the '70s and '80s, particularly around comic books as a medium. Boomers hit their prime earning years and decided that they didn’t have to put aside childish things. Most of all, though, people realized that old comic books in mint condition could be worth serious money.
In the '40s, '50s, and '60s, comics were a fragile and disposable medium. They grew brittle with time. They faded in the light. Even relatively careful reading would leave them creased and torn. A few fans did keep their comics in pristine condition, but it was strictly a labor of love. No one was treating that first appearance of Spider-Man as an investment.
In the '70s, known to comic book fans as the Bronze Age, the collector's market started to emerge, and people began paying more and more for that limited supply. Particularly with the so-called Golden Age titles, the numbers were tiny. It has been suggested that there are fewer than 100 collectible-quality copies of Action Comics #1 featuring the first appearance of Superman.
It was around this point that people started thinking of comic books as something of tremendous potential value, which ironically guaranteed that no comic book would ever shoot up to tremendous values again.
By the 1980s, many, if not most, comic book buyers were to some degree treating their purchases as potential investments. As a result, a large share of virtually every title published by DC or Marvel remained in mint or near-mint condition. It became almost impossible to get the supply low enough to bring in astronomical returns.
A partial exception, which actually proves the rule, would be the most valuable comic book published in the '90s ($2,000). Bone is one of the most beloved comics of the past 40 years, but it started out as a tiny self-published venture. Over the years, it would grow through word of mouth and glowing reviews, eventually becoming one of the best-selling titles of the past few decades. However, very few people bought that first issue, and even with that extremely limited supply, the growth and value were nothing compared to what we saw with the titles of the Silver Age. Once everyone started putting their comics in bags, the gold rush was over.







