I don't think I've ever sat there and thought "cool free stuff" when updating. More so annoyed as it reminds me that our systems at work should probably get updated.
I once accidentally installed one on my Mac and I lost my shit.
Like, first it was an emotional reaction of losing my shit, then I actually lost a lot of important shit because there was no way to downgrade, and the latest OS cut off tools from my important tools and apps from being run.