So not sure if it's the declining popularity of the Red Sox or the economic conditions, but Boston Globe have some Red Sox collectibles on sale for cheap.
There were several autographed balls for only $50, but many of those have sold out. Some that were on the site for $50 before were autographed balls from David Ortiz, Josh Beckett, Kevin Youkilis Mike Lowell, and a Jim Rice/Dwight Evans/Fred Lynn one. Those are all sold out but Jonathan Papelbon and Hideki Okajima ones. People just don't like relievers, or maybe people expect Papelbon to be traded this offseason.
Check out the Red Sox Merchandise sale here.