Yeah, I don't know that *need* is the right word for the numpad... But my keycap set has the numpad keys as navigational controls... So pretty sure I want one, even if it doesn't get used much.
The Ducky pocket calculator seems kinda cool, but not aluminum. Any other cool, slightly off-normal, preferably aluminum numpads out there?
Good call on the o-rings. The MF-87 showed up yesterday and it's certainly louder than the Dell junk they provide at work. Also - holy moly this thing is sweet. Super solidly built. Nice backlighting. USB connection seems fine (reviews said the first version had issues).