Genus Thrigmopoeus
Indian fossorials from the Western Ghats, T. truculentus and T. insignis, and the market here is defined by a border.
India prohibits wildlife export, and has for a long time. Every legal Thrigmopoeus outside India descends from stock that left before that, so the entire global supply runs on a closed founder population bred in Europe. That is the price story and it applies to every Indian tarantula genus including Poecilotheria.
The animals themselves are moderate-sized burrowers, old world in temperament, drab with some subtle patterning, and undemanding beyond substrate depth. Nothing about keeping them explains the price. The paperwork does.
The line on each tile: lowest ask per day.
Rarity BETA Rarity is supply, and only supply: the tier is how many sellers have ever carried a species, and for a single seller, how many separate listings. Price is not part of it, and neither is how recently it appeared. Tiers are given to tarantula species only.