Are there any advantages to use a mechanical keyboard other than "feels good man" and "dem clacks"?
Yes. First of all, this keyboard does not click when keys are pushed. It may clack from the keys being pushed all the way down, but there is no click in the stroke of the key. The keys go down smoothly and they are much more sensitive than usual. The advantage is that you should never miss a stroke when you get use to the keys, it has a faster response, and you can also repeatedly stroke the keys faster than average keyboards. The key only needs to be pushed down about half way to trigger it. Therefore you don't get hand fatigue as easy. It takes much less to push these keys down than a regular dome style key (or even other mechanical switches). The other advantage to not having keys that click, as opposed to other mechanical switches, is that the keys don't need to come back up as far before you can push it again. Therefore you can rapidly strike the same key over and over with very little effort. To be entirely honest, I love this board for gaming, but I hate it for typing.
See a comparison of the keys here:
http://www.overclock.net/keyboards/491752-mechanical-keyboard-guide.html#post_6009482This keyboard has Cherry MX Red keys. Note how there is no click or hesitation on the demonstration, same with the black switches.
Cherry MX-Red's are another switch that can be considered a "gaming" switch. It's essentially a lighter version of the MX Black, requiring less force to actuate. Some people do not find this switch that good for typing or gaming because it is so light, but others rave for this fact. Light or Stiff is always a matter of preference. This switch was hard to find; and was reported as EOL, but it is still in limited production with a higher than average MOQ leading to higher cost to board makers. Marketed with high demand, boards with this switch are becoming more common, but are generally more expensive as well.