Still think meerkats make good pets? Then listen to what meerkat experts have to say:

Meerkats are social animals that naturally live in family groups. Keeping them on their own under confined conditions is likely to lead to high stress levels. In addition, they often become aggressive and have to be destroyed.
Tim Clutton-Brock, Professor of Animal Ecology at Cambridge University and head of the Kalahari Meerkat Project

Meerkats do not make suitable pets and should be left in the wild where they belong. They are highly sociable mammals that constantly require activity and care - they should be seen more as children and less as pets, as far as the degree of attention they require in captivity is concerned.
When their owners realise how very demanding and destructive meerkats can be in a home with their continuous urge to dig, and how very dependent they are on their owners for everything, the meerkats are often then seen as a liability.
Captive meerkats are very often obese and very unhealthy due to a totally unsuitable diet and lack of adequate exercise.
Grant M. Mc Ilrath, The Meerkat Magic Conservation Project

Meerkats are social animals that naturally live in family groups. To deny them this and to prevent them from roaming freely is to extinguish the very character and vitality that makes them so appealing.
Caroline Hawkins, Executive Producer of Oxford Scientific Films and creator of the award-winning series Meerkat Manor

Please remember, meerkats don’t make good pets
James Honeyborne, wildlife documentary producer and director of wildlife drama The Meerkats

Meerkats are animals that I feel are totally unsuitable as pets. Their lives revolve around social interactions with others of their kind; these needs cannot be met when they are kept as a pet. At maturity they invariably show aggression towards humans and can inflict nasty bites, as I found to my cost with a hand reared orphaned Meerkat in the Kalahari. Observing groups in the wild its remarkable how much ground they must cover to find enough food, in captivity fed on demand, with no need to exercise they soon become fat and lethargic.
Nigel Marven, wildlife presenter