There's no Blue Book value for pigs, cows or maple syrup.
But Gardner Stone has taken all of those as trade-ins from customers of his Ford and GMC dealership in rural Vermont.
He boldly claims the business, G. Stone Motors, "will take anything in trade." He really means it.
"I feel everything is worth something," says Stone, 71. "Lots of times you'll get into the middle of a deal and the customer won't be able to go any further. So we always ask them, 'What else you got that you're not using?'"
Stone has been bartering antiques, livestock and other oddities with car and truck shoppers for nearly 50 years. He says such transactions represent about 20 percent of his sales.
Recently, his unique business approach caught the attention of a production studio, Lionsgate, which thought the dealership would be an ideal subject for a TV reality show.
A pilot the company filmed tested well, and GSN -- formerly the Game Show Network -- ordered a season of eight half-hour episodes. Filming just wrapped up after about six weeks, and the show, titled "Family Trade," is planned for sometime in 2013.
"Gardner is a great businessman, and he really goes by his gut," says David Schiff, GSN's senior vice president for programming and development. "The variety of things that come in that door are so unique and so interesting and so much fun."