[Rochard]

I don't think it matters much to me, but all of my houses have had multiple floors. I grew up in a ranch home with a full un-furnished basement.

I moved to California and then Arizona, and in both states basements are not common.

I have a two floor house, with my home office and all of the bedrooms upstairs. We also have two garages with professionally installed flooring; The second garage operates as a "second outdoor playroom" for my kid.