Game I stopped playing: Professor Layton & The Miracle Mask
Why I was excited for it: I'd completed all the previous Layton's, and was excited to see the rest of the prequel story unfold.
Why I stopped playing it: Ran out of Hint coins just when I needed them on a tough puzzle, can't remember the puzzle number, might be 105 or 108.
Likelihood of returning to it: High, when someone finishes their Let's Play on Youtube I will see how it's done.