Here is a snip-it of what I always e-mail people who are interested in my Greater Bushbabies (may vary somewhat according to the circumstance, but this is for people asking basic information).
"As for caring for a Greater Bushbaby, here are the pros and the cons as I see it.
Pros- They are beautiful, intelligent animals and have a lifespan that is several years past that of a cat or dog. Their behavior (if their habitat is set up properly and naturalistic allowing for true observation) is wonderful to watch and study. They cannot "fling poo" like other primates and their stools are more like rabbit-sized pellets. They are interesting, hardy, captivating and gregarious little creatures.
Cons- Expensive inital cost (3-4.5K for an O. Garnettii Bushbaby from a *good* breeder), habitat (you will spend no less than 1K making a suitable habitat to keep your adult Bushbaby outdoors as these are very active animals who do not deserve to be cooped up in a small environment such as a parrot cage... if you live in an apartment, forget about it), food (fresh food is a *must* for Greater Bushbabies, they will get obese if they are kept on monkey chow and it is not balanced for them, and they require "special" items in their diet as well such as Acacia gum, nectar, live crickets, etc. on top of the usual fruit and protein sources), and toys. You cannot diaper a Bushbaby as not only will this not allow them to do their natural urine washing (if you plan on spending much time with your Bushbaby you can count on getting drenched in pungent odor due to their natural marking instinct) and is thus cruel, but they are also capable of demolishing a diaper which is a real hazard if the bits are swallowed. Most people, after being around them, are put off by the smell of their urine alone and I know even educational facilities that have rehomed their Bushbabies due to this. They are nocturnal and can become very boisterous at night. Their bites can cause massive injury (I know this firsthand as I've been bitten clear through one side of my finger and out the other) and, as with all exotics, you can never be completely sure if "instinct" may kick in even just for a moment and you take a big nip that may require medical care. A Bushbaby is not suitable to be around children (even supervised at any age). As with almost all primates, they do not enjoy being restrained or handled excessively... even the most interactive animals. They nip frequently, even if it is without intent to injure. Adequate veterinary care is difficult to find and expensive. Legality can be difficult to ascertain and you would need to know without question that you can keep non-human primates in both your state and county, which will require a great deal of research and phone calling. Hands down, Bushbabies do not make good "pets" and none bred in captivity are very removed from the wild.
Those are the strait facts. I realize my summary can be counterproductive in selling but I never want to sell any animal to a person who does not realize the intense amount of care and responsibility that goes into keeping such an animal. I love them and keep them in spite of all that is mentioned above and others choose to do the same. If you read all of that information meticulously and thoroughly and still decide to pursue purchasing a Greater Bushbaby for future observation/study, one-on-one limited interaction, or breeding and can provide the care that I mentioned above, then you are a good candidate to own one. I will be happy to answer any other questions you may have about them. Keep in mind that I do make any potential buyers fill out a questionaire before purchasing and ask for references, among many other things.

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Take it for what it is worth (years of experience and a facility/career dedicated solely to Greater Bushbaby spp.) and I hope this helps somewhat. There is much more detail to be explained about their care and natural behavior but this is an overview for anyone wanting some general knowledge as it pertains to a Greater Bushbaby's "pet quality".
Regards,
Jennifer