Cancelling The Clash Of Champions

Was the reason WCW/TBS cancelled Clash Of The Champions had to do with Thunder starting up shortly thereafter, or was it something else entirely?  I mean having a glut of programming never stopped them before then, so I don't know why it all of a sudden would at that stage.  

They had been trying to cancel the Clash shows for years because of dwindling ratings and starting Thunder just gave them a perfect excuse.  Producing TV costs money and if you can save a bit of it, why not?