I agree with the sentiment of the OP. WMMA was always my favorite season, but I dropped off after 3. Not played in forever and I don't even watch MMA anymore. Decided to get back into 5 during Black Friday and I have been playing it every day now. Finally playing a real WEFF game, that I never did in 2 or 3, as the populate fighter feature wasn't a thing. It is so amazing, also adding new pictures or a few own characters as well.
I watch all the main card fights of any show possible(well, I mostly skip to the end, but I keep up with it much more) and keep engaged with how the companies operate. It is so fun. Some days I only have one event happen of my own company, but I never feel like this is slow. Because, it is so fun to see what the AI does. I made GAMMA and ALPHA-1 do the whole "Rapid Fire" AI strategy, which I just love. In the earlier games, the AI ran limited shows and so many fighters barely fought. Now, everyone is active, people get better and it is just fun to see.
I already got more than enough out of my purchase. What a wonderful experience.