I've had multiple "Gaming keyboards":
Logitech, MadCatz, Razer.
And I totally disagree on the RBG... Sort of...
Sure I don't change it, but I can get a complete colour match across all of my peripherals from different suppliers using RGB ones, where I couldn't without it.
I have a Madcatz MMO 7, a Razer Naga Epic Chroma, and a MaxKeyboard (Cherry MX Red).
Its much easier for manufacturers to make an RGB device than market / produce a blue backlit keyboard, a white one, a yellow one...
Of all the "Gaming Keyboards" I've had I don't really use any of them any more, other than the orbweaver.
The Mad Catz Strike 7 sits lonely on my desk (still plugged in tho), the Logitech G15 sits idle on top of a cupboard and the Razer keyboard was sold via auction.
Why?
Because I don't want 2 keyboards and all of the gaming keyboards are pretty rubbish for typing, they keys feel much better on my Mech keyboard.
IF the Strike 7 was Mech I'd use that in a heartbeat.
It does not however help the OP that he totally doesn't understand Keyboard technology.
I would NEVER buy a keyboard without at least 10 key rollover, preferably N-Key Rollover, and NEVER EVER EVER without Anti-Ghosting for gaming. Whatever it was.