It's one of the few mods that doesn't have a huge drop in resale value.
For some games, it really adds a lot. For other games, it's ok, and still others it doesn't always add much compared to what it costs.
If it wasn't $400, I would certainly buy more of them since I find the price tag a bit of a big pill to swallow.
But since you can effectively swap it around between games, you can always move it to a different game if you don't like the results in a particular game. Or, even resell it for close to retail price if you simply don't like it at all.
The last time a colordmd went up for sale in the marketplace, there was a bit of a feeding frenzy, lol