Prison Break is not being cancelled, it's simply reaching it's conclusion, finishing the story. Do you really want it to go on and on? Eventually there will be no Michael and Linc but new characters and a slippery slope. This is what will make it a classic show and memorable. If it dragged on it would be a soap opera and not the great story that it is, similar to a book, you don't want to read a 100,000 page book. The prime example is Lost, originally written for a few seasons then dragged out until it has become boring, makes no sense and is now just nasty bad!!! Great things don't last forever, unfortunately. Please don't try and save it as ultimately this will only lead to a mediocre pile of nonsense, let it live in our memories as the fine tv series that it is.