It does look like there's something wrong with the Newegg reviews.
For example, when I listed a bunch of drives on Newegg, the listing
said there were 2,930 reviews for the item. And considering they
haven't been for sale that long, that sounded wrong. The actual
page is showing only 22 reviews.
http://www.newegg.com/Product/Product.aspx?Item=N82E16822236407
You can always look for an enthusiast site review.
http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/58267-western-digital-black-4tb-hard-drive-review-3.html
It's interesting, that in a quick search, the tech used tends to not
be 1TB platters, but perhaps 800GB platters. So these drives
are likely a bit on the "tall" side as well. Fitting five platters,
think of the vertical spacing.
Also in my quick search, there is a wide variation in rotational speed.
The slowest I found, was listed as 5200 RPM. Another was 5900 RPM.
The fastest was 7200 RPM. You have to be very careful when buying
them - I've run into situations before, where they don't state the
RPMs, because they're not proud of the figure. Rotational speed
is a component in the seek time (since the sector you want, has to
rotate under the head).
So, yeah, by all means, spend a lot of time on the reviews.
These look a little too new to trust yet.
Paul