After decades fighting super villains, the Justice League was taken down by its greatest nemesis: an atrocious movie. But there is a silver lining because now may be time to invest in JLA's key while the prices are falling.

I'm not going to say that the Justice League movie doesn't have its fans; I'm sure both of those people quite enjoyed Superman's digital upper lip and Joss Wheddon's attempt to transform the JLA into the Avengers. For the rest of us, it was simply terrible. It was so bad that Warner Brothers reportedly lost about $100 million. It's a wonder that WB even wants to continue the DC cinematic universe after such a hefty cost, but they're still pushing along.

As I've written before, the price of a bad movie or television show can be seen in the value of key issues. Depending on just how much people hate the big (or small) screen version, those keys can really take a beating. Case in point: the Inhumans. Audiences despised the television show so much that it was cancelled after one season, and Marvel has since stopped pushing them in the comics and is in the process of killing them off with the Death of the Inhumans story.

It's safe to say that DC won't take such extreme measures in the wake of the Justice League's failures at the box office, but investors are nonetheless steering clear of that first appearance in Brave and the Bold #28. On average, almost all the grades have taken a hit in fair market value since the movie's November 2017 release date. Granted the values are still in the thousands, so it's not like its FMV has plummeted into the depths of comic book purgatory, but when a major key experiences a universal drop in nearly every grade, that's alarming.

At first glance, any comic that fetches a price tag of $77k, it's impressive. However, when you consider that is a sales drop of nearly $30,000, then it's downright scary. Here's what I'm referencing: on July 19, 2017, a graded 9.0 Brave and the Bold #28 sold for a whopping $108,000. Another 9.0 sold on November 16, 2017, just three days after the stateside premiere of the movie. This time, the price fell to $77,675.

Very few of us have six figures to invest in any comic, so I'll drop the grade down to a more-reasonable 3.5. Last year, it brought an average of $3,309. In 2016, one sold for as much as $4,100. The 12-month average is much less promising at $2,545. The last 3.5 to sell was in June for $2,088, which is a five-year low.

Not all grades are taking such a major hit in FMV. Some of the upper-mid grades have been holding steady, which is a good sign, but any grade of B&B #28 that has sold in the past 90 days has experienced a downward slide. Case in point: where a 5.5 was averaging $6,575 in 2017, one sold for $5,100 last month. This is the same scenario that we're seeing across the board in 2018 sales of B&B #28.

All is not lost (unless you were the one who paid over $100K for that 9.0; you may want to start panicking). This is the Justice League, and they are too famous to get the Inhumans treatment. If we ever get another live-action adaption, it's not likely to be anytime soon, but DC isn't going to throw away such a valuable property. That means that if you already have the first appearance in your collection, hold tight because it's a buyer's market and the prices are not finished dropping.