Slashdot linked up this review of Homestar, a small home planetarium. At ~$240 US it's not what I'd personally call affordable, but it's definitely not outrageous either. Right now Olivia would certainly get a kick out of it, but then she'd probably try to kick it and that would be that. Maybe by the time she's six they'll be selling it here in the US, and I can (try to) make the little monster save up her allowance for it.

That "yeah, right, daddy = ATM with legs" sign you're holding up isn't very funny, by the way.