Monkeys live a long time and need regular vet care and socialization (i.e. monkeys like ourselves are social creatures and live in groups - can you provide this type of environment). Will you take this creature with you when you leave? Will you get a proper import certificate? Will you provide quality health care as well as day to day care?

Do some research - they're not just "fun" creatures. They are sentient beings, created by the creator - for a purpose, not for entertainment.