In my opinion, MA is eventually a dead-end. If you stick with it long enough, you might become an old master - but at 60 or 70 are you really going to be out picking fights? The only thing you might want to do at that point is teach.
So, I think in the long-term you will do it for fun and the art itself, or use it as a stepping stone to other areas like say healing or spiritual growth.
He studied from Kwan Saihung!!! I say study there, the spiritual elements master Kwan taught…those alone are worth it
For anybody not familiar with Kwan Saihung check out www.easternhealthpractices.com
Merryprankster…
Check out the thread regarding Muay Thai in MD. I’ve posted all the local MT schools that I am aware of.
Legend…
Do I know you? I mostly lurk here, as Q&A KICKBOXING is my usual haunt. I chime in occassionally if I have something to add…
Khun Kao
To post to the original question, the only point to training is the one you create for yourself.
khun…nah…we never met…but i’ve seen your post from time to time in UG.
A
You’ve already gotten some great answers. And Old Jong touched on it. Video tapes! They can be a great way to learn. But only if you’re dedicated and hopefully have a couple of friends with which to practice. And yes, the Gracie tapes are excellent. All said and done, it really is best to have a good teacher, but you don’t have to start at a school. And when you look at the amount of info on a tape it’s actually cheaper than a school. 
“Box a fighter and fight a boxer”. Bruce Lee