Well, with three platters spinning at 5400 RPM, this is a very economical drive for someone who needs a lot of storage, and isn't too concerned with speed. I think it would make a great backup or HTPC drive.
It's not like I'm against bleeding edge tech. (OK, personally I'm not buying, but I still like to look), I mean 3/4Tb on one platter is a good thing- if you don't loose it all. What most people don't realize now, is that if you buy a 2Tb drive, you had better buy another one to back up the first. These outfits are cutting corners to try and keep these huge drives affordable, and that makes them less reliable.
Seriously though, I'm both surprised and rather disappointed that the already mature tech isn't being utilized by these outfits to produce a drive that feels like an SSD, but holds a huge amount of data. Seagate's hybrid is a good start, but falls far behind the potential. I think there is a big market for a drive that would keep large files on a disk with fast sequential reads, while putting all the small files on flash for fast access. The technology is here now. It just needs someone to put it together.