Well, the reason those nuts are insanely expensive here is because the trees do not grow in a humid wet rainforest climate. That's why I'm focusing on growing trees that produce nutritious nuts/seeds appropriate to the climate here.
Anything that a person buys that is imported costs considerably more because transport and distribution is more expensive than growing the actual food. As a cacao farmer (cacao is the base ingredient in chocolate) who also processes and ships a finished product this is something I know a good deal about. Dried cacao beans get a local price of a mere 90 cents per pound on average. By the time they reach a market in the US, Europe, or Japan, the same beans without any further processing will cost $9 - $12 per pound.
Nor do apples grow here. Nor pears, peaches, apricots or figs -- although those fruits do grow higher up in the Andean Sierra. Instead we have papaya, guayaba, many varieties of lemons and oranges, tangerines, pineapple, etc and many fruits Global Northers have never heard of like arazá, borojó, jabicotaba, salak, and inga. We have at least 8 varieties of banana growing on the farm and 5 varieties of plantain, plus yuca (cassava), air potatoes, and taro.
People are often shocked to find out that it's a struggle to grow things like lettuce or onions and you can forget about growing cauliflower or broccoli or brussel sprouts. All of these things require cooler or drier weather the north experiences in spring and fall.
There is abundance here, but it's a very different selection and requires some adjustment of expectations and taste to enjoy.
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Jabicotaba (not cherries)
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Naranjilla. A tart tomato relative.
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Salak. Aka snakefruit
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Breadnut.
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Chicle.