Sam, I know the guy selling it in West Covina, never went there yet but will in another month to checkout some of the other fruit trees he has. There's no way you will get scions cheap since most peoples tree is too small That price you see is for a small grafted 2yr old tree, who would cut off the scions to sell it cheap.
If you want some scions from the huge tree I know of, then just send me a message and we can negotiate a trade anytime. I just texted the guy to see if had any ripe fruits for me but he didn't. I did see many fruits on the tree, and I tasted it, but they were still half the size of the photo I showed above. I do like the taste of the Tao Dai Mat but not planning to take any scions to share yet, it is not large enough.