I started Arnis de Mano to learn how to fight. Did it for a couple of years, then quit.
Got into Historical European Martial Arts because it seemed fun. I mean, it's got swords (well, a lot of them do), and swords make everything
better.

It's as much a cultural pursuit as anything else. The practical modern day applications have always been secondary to me, even if the crossover is very apparent. After all, if a long-dead fight master who actually survived multiple knife attacks wrote down "when attacked by a guy with a knife, do XYZ", that's pretty good information to have today. Every week I have people try to hit me with swords, both nylon wasters and steel blunts with very little protection (fencing mask and padded gloves). New people often flinch when a steel blunt even comes near them during slow instruction. I can calmly deal with steel weapons coming at me at a good clip during sparring knowing that if I make a mistake, I will end up with a broken hand or worse, so I don't panic easliy. Also, compared to a flying piece of steel, few things in life are REALLY scary. If someone trys to hit me with a baseball bat or a pool cue, I have a really good idea of the possible angles it can travel and how to not be there when said object comes flying at my noggin at 40 miles an hour. We also train unarmed every week as well, so I know how to dump a person on their butt. I'm no match for a seasoned MMA practicioner unarmed, but I never claimed to be. And who cares anyway. The chances of me every having to use any of it are practically nil.
I also enjoy the problem solving aspect. Sometimes the masters were a bit terse, and a lot of experimentation is required to figure out what the author intended. This makes one focus on principles to a large degree, which is excellent mental martial training.
And I do the Japanese sword arts as a cultural pursuit as well.
I would say I learn MA because the intellectual, physical and emotional payoff for me is far in excess of the effort put in.
Best regards,
-Mark