greatest hits

Is the grass - or cash - greener on the other side?  Whenever I see that a band is releasing a greatest hits CD, I always assume that they've found a way to score more cash from a different record label, or they've decided to go at it on their own.  The old "so...according to our contract, we owe you one more album..."  And nine out of ten times, that album ends up being a live record, o