Unreleased albums from the 80's and 90's...

I've just been sitting here thinking about this tonight, and I wonder... Chicago just released "Stone of Sisyphus" last year, which they recorded (I think in '94). Mr Mister is getting ready to release "Pull" which they recorded in '89, and it was never released. Bad English recorded "The Lost Tapes (unofficial title)", and it's never been released. Many of these bands had entire albums recorded in the late 80's/early 90's, and the record labels dropped them like they were hot potatoes so that they could sign grunge acts.
It just makes me wonder how many other albums were shelved after they were recorded, that we've never even heard? Anyone know of any others?

It just makes me wonder how many other albums were shelved after they were recorded, that we've never even heard? Anyone know of any others?