https://arstechnica.com/gaming/2024/09/sonys-axed-concord-is-surprise-collectors-item-disc-prices-rise-175/
eBay prices have risen quickly less than a week since online game's shutdown.
Dig a big hole and put them in, don't tell anyone where you buried them. The people will crave the buried treasure in years to come.
A friend of mine bought one at MSRP to add to his collection along with the likes of Anthem and Babylon's Fall. He also picked up Suicide Squad for this reason, but he found that he unironically really enjoys that game while it's still operational.
Right? For a game to be a collector's item, it needs to still be able to function in its intended capacity. Additionally, they need to be considered good. Most games that become a collectable do so when they transition into the "classic" category, usually 20+ years after they released. In 2050, no one's going to think, "Oh man, Concord was hailed as a masterpiece in its day, I need to own that piece of history!"
That's up to the collector. They'll be a rare remnant of the biggest gaming flop in history.