Years ago, back when I was using Windows, I bought a copy of Opera and was absolutely amazed at the speed. I was shocked! It was very refreshing.
I've used it off and on as both Firefox and hardware have gotten better and better, and it may no longer have an advantage. But it still holds interest because of what a difference it made back then.
Besides, I like to have choices. I want to be able to run a variety of Linux distros, a couple of BSDs, and even Windows sometimes. And I want more than one browser.
Hmmm! You're probably innocent, but it did kind of sound like flame bait. :P