Well, I'm a bit weird in this regard. I love to replay games even if they're a bit long. I've played Wind Waker and Skyward Sword at least 6 or 7 times each, I can't remember how many times I beat Twilight Princess (I'm speedrunning it now), I went through Final Fantasy VIII like 4 or 5 times... Golden Sun and Lost Age... maybe 20 times each withour exagerating. And I completed Xenoblade Chronicles three times. Hell, I replay Hotel Dusk and Last Window (two visual novels/graphic adventure/whathever) EVERY DECEMBER. So yeah, I find replayability in most games xD
Of course, there are games that once I've completed them, there's no more enjoyment to be found. The most evident case is The Beginners Guide. Once it's over, it's over for good. There's no reason for me to pick it up again. Professor Layton games too loose all fun once you've beaten them, because you already know the answers to most puzzles, so a second playthrough would be weird. The Order 1886 is also pretty bland in terms of replayablity. Once you've finsihed the story... there's little incentive in playing it again.
