Yes, I am selling my Cube -- but wait, I have another one
Seriously, this is a "spare" Cube, which is absurd. But once you use one, you'll understand that you never want to be without one! Note that this is an earlier version which has different rubber on the knobs, but it is a "real" Arca Swiss Cube, and it works perfectly and is totally smooth and bubbles are dead-level. It shows a few signs of use, mostly as minor rubs and nicks on the top clamp. Includes original box and yes, the famous (and ridiculously expensive) leather case! Perfect working condition.
Asking $1495 OBO, shipped US and paypal'd (The one with the case is over $1900 new and they're out of stock at B&H.)