If it comes with a real warranty then its worth it. Check the product feedback and be aware of faulty products! I'd do a google search too!

I always like to have at least two drives for backup of data.

Nothing is worse than loosing your project!!!!

Here's an amusing and slightly related anecdote about the falling of processing and memory costs. Ages ago, I worked for a short spell at ATT Canada (just in the warehouse I should add) and they had offered early UNIX pc's to employees at (what we thought were) tremendous discounts. I bought a 67 MB computer for $1500, but the list price on it was $14 000 (not a typo), and I assume some people paid that, as we certainly shipped a number of them. Of course they were thoroughly obsolete about a week after I bought mine.

These ATT PC's actually had some claim to fame, in a similar way to the EV 664 mic, which has found its way into concert and video due just to its look. The UNIX PC's were very futuristic looking for the time, and they would later appear in several low budget sci-fi movies as props. At least the devices had found their true calling.

In any event, a few years back, I did the math on what a computer of the day would have cost to get equivalent processing power and memory from the ATT computers back then (Which were indeed capable of daisy chaining) and the figure was about 1.5 million dollars. I suspect the figure would be closer to 3 million today.

That's amazing for 2 TB. My first computer had the biggest drive i could buy(16 gigs) and i think it was like $175. I thought that would hold the entire world till i bought my first app. and realized it was more like two songs sharing one reverb plug.
I just bought a 300 gig ext. seagate for $40 and i thought that was cheap.
2 TB though, i could put my whole life on there and still have enough space left to operate a major bank.lol

I didn't really look at the specs because I'm set right now for backup disks. One big lesson from this is that you shouldn't buy memory until you need it. It will be cheaper tomorrow.