Leave it to Razer to release an $80 membrane gaming keyboard. It probably doesn't cost them much more than $10 to build these things. Considering you can find a number of off-brand mechanical keyboards with backlighting for under $50, it seems you're paying quite a bit for that Razer logo.
techy1966 :
...I myself do not like Mech keyboards I find them way to noisy for my liking and prefer the quiet membrane keyboards of coarse without the Christmas tree lighting...
I do how ever find it kinda funny that so many people dislike loud computers got to make sure those fans are barely spinning it's to noisy. Then go out and buy a clicky clacky keyboard. That clacking drives me through the walls when hearing it in the youtube video if someone is typing I can not imagine what it would be like if it was in the same room as me...lol
There are plenty of mechanical keyboards with quieter switches. Blue switches have a tactile bump with a clicker built in to provide audible feedback when a key press activates, but brown switches don't include the clicking part, making them quieter. Red and Black switches leave out both the clicker and the tactile bump. And while some people bottom out their key presses making an audible clack, the keys activate well before that point, so at least for typing, any of the key types without a clicker can be fairly quiet. Rubber o-rings can also be added to the keys to dampen the sound, so that even when you bottom them out, they shouldn't be much louder than a membrane keyboard.
As for the clickers built into some key types like the blue switches, the sound is there to better indicate when each key press has activated, to help you to avoid pressing keys all the way in while typing. It shouldn't be as distracting if you're actually using the keyboard, since it can be perceived as feedback to an action that you're performing. If others are nearby or you're recording a video though, it might be a good idea to get a keyboard with quieter switches and/or install a set of o-rings.