I'm in almost exactly the same situation as you (both in your line of thought and % of loss)!
Obviously, I wish I would have pulled the plug along time ago...but I didn't. I stayed in because I believe in the "technology" and the opportunity - the ironic thing is that this is more true today than it was a few months ago.
I'm not getting out at this point. From my perspective it's a great time to buy for those that haven't been involved. With this cash infusion and a partnership arrangement somewhere down the road, a lot of the preceived risk will diminish and it will head back up.
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