It makes me itch a little too .
If nobody converted their coins yet the Mootinator plugin shows we crossed into positive USD territory today. Still have a ways to go on BTC though..
http://www.dzminercoop.com/?page_id=302
I reached the point that I just cash out at coinbase as soon as possible . while it does not max out profit it safe-guards against a crash.
Between all of the btc worlds for me, I am in the all profit world. so conversion to cash is almost all I do now. while I may not get rich this way I like the lower stress levels.
I don't really endorse one way or the other, it's just less work calculating USD ROI based on holding the coins =)
It'd be kinda fun to integrate with the user accounts/payout spreadsheet so you can see a summary of your own shares using whichever method you prefer instead of the entire GB.