Telltale's Surfing the Highway paperback is still available
Anyone who didn't get a chance to pickup the Surfing the Highway paperback that collected all of the Sam & Max comics (except The Big Sleep) before Telltale stopped selling physical merchandise from their website, don't worry. You still can pick it up for the retail price of $19.99.
The Cartoon Art Museum, which featured a Steve Purcell art exhibit in 2013, sells Telltale's 2008 paperback edition. They also have a holiday card set that includes a Sam & Max Christmas Card.