NEW YORK (AdAge.com) -- Pandering to consumers' dreams is always an effective promotional strategy in times of serious economic downturn. And HGTV is doing it in a really big way with its latest "Dream Home" giveaway of a $2 million, sumptuously appointed residence. To enable the mortgage-challenged masses to get up close and personal with the project, parts of the house were recently erected in New York's Grand Central Station. The lucky winner is announced in March.