Lucky me. I chanced upon mabolos in Farmers Market in Cubao. 120 pesos per kilo.
Mabolos grow mostly wild here and there and in the mountains and forests. In some website they say it is cultivated? Sure sure, by someone who likes them and planted a couple of trees in his yard.
Mabolo is not a popular fruit. There is no demand. These things are sold as a mere addition, a novelty in a big market such as in Marikina or in Farmers Cubao. You are never going to see this in a supermarket.
When you find a rare fruit being sold like a mabolo, buy some immediately.
Good thing the kids liked this. They ate some last night and this morning. I wonder what it is good for?
Learn more about Mabolos at http://www.hort.purdue.edu/newcrop/morton/mabolo.html