I've thought about this as a potential topic for a while and these videos made me fire it up.
This first one seems to have a blank thumbnail at the moment. It's a let's play of ECHO entitled: Running was a mistake.
The amazing thing about this form of entertainment is that you don't always know what subject or style of game is going to get you excited next. If you'd have told me a week or so ago that I'd be loving play throughs of a submarine combat game I may not have believed you.
I'm probably going to pick up both these games in the fullness of time.