Ant farming

Okay, here is my moral dilemma. My daughter has wanted an ant farm for a while now, and seeing as she has been very well behaved this last week, unlike the previous week when she was doubling as a moody dragon, we decided to get her one. It was nicely packaged and it was great fun making the plaster of Paris mould, it came with gloves and mouth mask, and she looked like a real little scientist. As far as educational goes this rocks! Even I am getting into it, you can watch the ants nesting, feeding and laying eggs and can buy other sets in the range, link them up and create a whole ant world. There is an interconnecting Ant Circus, Ant Mine, Ant Jungle, Worm Farm and Eco Dome. Great! But it was pointed out to me that maybe taking twenty ants out of their natural environment was, well, maybe a tad cruel. What are your thoughts? Is it ant prison or ant utopia?