Racist?

Anyone else disturbed by "Extreme Makeover: Home Edition" on ABC? The normal reaction of the family to their new house bothers me--they usually respond as if they've just won the lottery (which, essentially, they have), but I would think that a more proper reaction would be of overwhelming gratitude. Would someone who truly needed it, react as if they had just won a contest?

Maybe I'm being a bit pessimistic about this; after all, at least they aren't using tax dollars.

Another thing: anyone else notice the racial makeup of the vast majority of the families on the show? Just something I noticed...