DD (5) really wants a guinea pig. I think she has seen them on various shows/in various books and keeps asking for one for gift receiving occasions. I have done a lot of guinea pig research and it looks like a guinea pig will need a lot of space and end up costing a lot of money (the animal itself is $36 and then the cage I'm looking at is going to be at least $50). We were at the pet store the other day and were watching a rat take a bath and it was so cute. I have had rats before and I really enjoyed them. I feel like a rat (or even 2 rats) would be cheaper, take up less space and possibly most importantly, be easier for the 5 and 2 year old to hold, play with, etc. I know that I am going to end up taking care of whichever and I am totally fine with that. Problem is, I suggested a rat to DD and she said she would still rather have a guinea pig. DD2 wants a mouse because she thought the one we saw running on the wheel was hysterical. I really think if we knew someone who had a rat and/or a guinea pig, she would realize how much easier a rat would be to handle and would then choose a rat instead of a guinea pig. So what do you think, rat or guinea pig? And if you pick rat, how far should I go in trying to persuade DD? I don't want her to say rat but still really want a guinea pig so she enjoys the rat but still constantly asks for a guinea pig, not trying to start a zoo here.