Endings

I'm developing a love for the endings of books. Especially ones that convey more than they actually have written. For instance:
"He loved Big Brother."
"It was the best bed he had slept in for years" (or something along those lines. I loved TMDG, solely for the end.)
I also really like sort of twisted endings. Ones that aren't expected and make me think. I like to just bask in the perfectness of the ending for several minutes, if it's good. And the best-written endings are the sad ones, I'm finding.