Good Sam Enterprises (formerly Affinity Group or AGI) is a provider of membership clubs, as well as subscription-based products, services and publications, targeted toward recreational vehicle and other outdoor enthusiasts in the United States and Canada.

Additionally, the company operates 187 stores of Camping World, a leading RV-related specialty retailer, and RV.net, an RV-focused website.

The company is the composite of several distinct businesses acquired through a leveraged buildup in the 1980s and 1990s and traces its earliest predecessors back to 1935.

The company is based in Lincolnshire, Illinois with major operations in Englewood, Colorado and is owned by Camping World.

In 1995, AGI acquired San Francisco Thrift and Loan (founded in 1982) and the company's headquarters were relocated to Ventura, California.

On August 15, 2009, AGI failed to make a $6.2 million interest payment to bondholders, and Standard & Poors subsequently lowered AGI's credit rating to D. Standard & Poor reported that they had taken this view because bondholders will be receiving less than par value for the notes and because of the company's highly leveraged financial profile, weak operating outlook, and limited liquidity given the near-term maturity of its senior credit facility.