I've been meaning to get one for my DS; I've noticed that he gravitates towards them whenever we have mum's group at one of the girl's houses (entranced by the unfamiliar no doubt). Not only are they great for imitative play, they are great for teaching anatomy too.

It's disappointing that there is such gender stereotyping attached to something that can have a lot of learning benefits to all kids. If you point out these benefits to your DH, perhaps he will be a little more open to the idea.