I was there two Saturdays ago at about 3:00PM, and this kangkong was sold at RM1/kg.
I am from a farming background. After pepper harvest, we plant lots of long bean and cucumber. During the peak, they were sold for 5 cents/kati, ie, 10 cents per kg. Still no one ever wanted to buy them! So, you would see mountain of them left to rot! A pity that we didn't know how to preserve. (That was in the '60's. A kilo of sugar cost RM0.25)
Just in case you don't know...
... this is peppper vine on belian pole. Inset is the pepper corn.
Baby cucumber with flower. By the way, cucumber flowers have distinct male and female. Male flower has no baby fruit.