Not to thread crap, and,
I know there are many other factors that people consider when buying hardware, (like space requirements, power usage, etc.)
but if you look at price/GB of other drives....
IF you have no issue with internal vs. external and you have room in your current server case, you could almost buy 3 x 500GB drives for this price and have either an extra 500GB or have half the 1TB mirrored... OR on the other hand, this 1TB is small and compact, and easy to carry from diff. locations, where 3 x 500GB drives would be a PITA.
Just a thought, good post OP!