I'm not sure for how much longer this will last, so get in quick. Telltale's best series, Strong Bad's Cool Game For Attractive People, is currently available in full (all five episodes) for £4 on Steam. That's... all five for less than the price of one episode on release. It's 82% off the full price. Each game takes a couple of hours, so by my maths that's ten hours for four quid. Or 40p an hour. What else can you do for 40p an hour? Park in Malmesbury, that's what. But I'm going to contend that SBCG4AP is even more fun than that.
These games benefited from the adventuring genius brain of Mike Stemmle (Sam & Max: Hit The Road), with the fabulous series highlight episode 3 created by him, and his influence throughout. The writing was handled by The Brothers Chaps who write the (seemingly now dead) Homestar Runner from which Strong Bad emerged, and is fantastically funny. £4! Get it!