Come on, they've had a really good run, and this is the first time since the relaunch in '05 that the doctor AND his companions have lasted more than one series together, which almost makes me think Amy & Rory's time in the tardis has lasted a lot longer that is really has. I was getting really fed up with them chopping and changing companions just when you were starting to get into them. But here, it actually feels like a natural end for them.