The fact that so many plugins are available now that do basically the same thing results in our brains receiving that instant-satisfaction chemical dopamine. We think that we can get better results with another stupid, waste-of-money plugin even if it's cheap. And the cheaper the better; It's a cheap fix. But it doesn't do anything more than what we already have.
Can't say that I'm not guilty myself. I keep track of all of my purchases for music-related stuff, and the sum of all my plugin, software, and DAW purchases over the years has equaled almost HALF of the total I've paid for my hardware synths!
But that one-more-$22-Waves-plugin is so nice. I gotta have it! It will help me, I swear it will. It has "color" and "character." BS.
EDIT: Yes, it's a bit ranty. After all, I'm not good enough to hear "color" or "character" in a plugin unless it's smacking me in the face and is quite obvious.