There is no specific answer to the question “How much is monkey?”.
Monkeys vary greatly in size, from the pygmy marmoset, which can be as small as a human fist, to the male mandrill, which can weigh up to 77lb. Prices for monkeys also vary greatly, depending on the species, age, gender, and other factors. For example, a popular primate, the marmoset, can cost anywhere between $3,500 and $4,000.
In addition, monkeys may require special diets, housing, and the services of a veterinarian, which can add substantially to their initial cost.