So you buy an external 1TB drive just for the sake of the conversion, then create a new partition, then copy your 1TB of data over, then... what? Wipe your PC,

So you buy an external 1TB drive just for the sake of the conversion, then create a new partition, then copy your 1TB of data over, then... what? Wipe your PC, boot into a live CD, then copy the partition over? Do you find this easier/more worthwhile than an in-place conversion? How/why?