So, I just received this in an e-mail from GOG.com:
"Save 60% on Telltale games: Tales of Monkey Island, Sam & Max Save the World and Sam & Max Beyond Time and Space."
Tales of Monkey Island: $13.99 USD (Save $21.00 USD)
"Tales of Monkey Island bundle includes the following episodes: Launch of the Screaming Narwhal, The Siege of Spinner Cay, Lair of the Leviathan, The Trial and Execution of Guybrush Threepwood, and Rise of the Pirate God."
Sam & Max Save The World: $11.99 USD (Save $18.00 USD)
"Sam & Max Save the World bundle includes the following episodes: Culture Shock; Situation: Comedy; The Mole, the Mob, and the Meatball; Abe Lincoln Must Die!; Reality 2.0; and Bright Side of the Moon."
Sam & Max Beyond Time and Space: $11.99 USD (Save $18.00 USD)
"Sam & Max Beyond Time and Space bundle includes the following episodes: Ice Station Santa, Moai Better Blues, Night of the Raving Dead, Chariots of the Dogs, and What’s New, Beelzebub?"
To be honest, Steam has had these games a lot cheaper, but positive vote for GOG.