Got a problem with hell .

I've got a problem with hell . What's in it for the devil . I mean forever and ever is a really long time to be watching a bunch of souls being tormented . I mean really , isn't the devil supposed to be really , really clever at every turn ? Or have the movies got it all wrong ?
"Man cannot live on bread alone" . But then , can the devil live on man alone ? Surely the mindless tantrums and supped up self importance of mankind wouldn't hold the infinitely mischievous mind of satan for long ? Surely ?

There's nothing in it for the devil. He's going, (Into the Lake of Fire) No Way OUT.
His only happiness, short of people worshiping him is to take as many of God's
created beings as he can with him.