Andrew's car is going to have very close to the maximum mileage allowed on his lease when he turns it in, so the way I see it, he got his use out of it.
The fact that he's fanatical about keeping it clean, just says that he's a meticulous person, and that makes him happy. But like 04Fire suggested, somebody is going wind up getting a car with mileage in the mid 30's that's like brand new.
I for one, sure hope he considers keeping it. Or better yet, find an SRT6 to replace it.