May be no need, but some of us just like reading reviews of keyboards and mice and other peripherals. Also helps when you get reviews of items not carried by your local PC store and only available to order online.
I wouldn't get any of these.
btw, how can logitech call that a new line of key. I bought one of those keyboard like 3 years ago, except it was wired.
Get a keyboard that use mechanical switches, capacitive switch, or bucking spring.
This is actually an interesting review. I wish there were more keyboards like the Eclipse. I want a single device that is wireless, backlit, and has a trackball... but without the bad reviews, connection problems, etc. I actually don't want a keypad. The whole idea is to have a single device with all the basic necessities - I can get my numbers on the top row thank you.