Used to be. I expect the price of McMansions built in the last 20 years to plummet as people realize they cost more to heat, clean, and maintain, without providing commensurate value.
A big house can have value, but not the way they are typically built in the US. A valuable one has a big-enough living section with a separate workshop, gallery, or apartments. American zoning laws tend to forbid it, so the workshop is often labeled a "garage". Your garage can be as big as you like, but you may be obliged to conceal how you use it.
Strange but true, Americans have been taught it's normal. Like diamonds.
A big house can have value, but not the way they are typically built in the US. A valuable one has a big-enough living section with a separate workshop, gallery, or apartments. American zoning laws tend to forbid it, so the workshop is often labeled a "garage". Your garage can be as big as you like, but you may be obliged to conceal how you use it.
Strange but true, Americans have been taught it's normal. Like diamonds.