Do you work in an open office with a lot of other people. Each person in their own cubicle typing away and all you hear is the click,click,click of the keyboard? Check out the new quite keyboard.

This is called the Black Widow Stealth keyboard from Razer. It's super quite mechanical keyboard with a matte finish and is still programmable. The newest Ultimate version has also has "extreme anti-ghosting".

So if it drives you nuts all day listening to the tap, tap of everyone's, including your own, keyboard then this is something to check into. It ranges from $80-$140 depending on the version you choose.
However, there are still those that get great satisfaction from hearing the actual keys clicking.