I don't think I have enough fingers (and toes) to count how many times I've replayed CMI in the last 8 years. It was the first adventure game my dad introduced me to back when I was about 10, and I just can't get enough of it since
it's even one of the reasons I speak English fluently - my basic vocabulary mostly consisted of LeChuck's audiobooks on parrot. Plus it gets more and more fun each time because I can understand the easter eggs and other jokes now.
I've also replayed Grim Fandango, Loom, the other MI games, and of course the Sierra classics several times.