Wow - I'm amazed at how many of us apparently think there is something wrong with wanting one of these houses. No, they may not be for everybody but for those that can afford them, the homes are very, very nice. Each is custom built to the owners specifications. Basic model floor plans are changed to whatever the buyer wants (yes, at a cost of course) and interior finishes/fixtures are all specified by the owner.
I'm sure the the people who buy there have some amount of financial acumen and understand what they are getting for the price they are paying.
Oh, and none of that detracts from how cute our grand-dog is in that picture.