As for me, it's another MMA game (WMMA) that led me to discover this gem that is MMA Tycoon. I felt like something was missing in WMMA, and while looking for an alternative, I stumbled upon this community.
I don't have a lot of hours logged here yet, but as a seasoned gamer, I can distinguish between a game I'll breeze through and one I'll really dive into... and clearly, this one has that spark.