First, Pink Sheets doesn't necessarily mean less liquidity.
Consider that the volume in AYSI.PK today was about 6x or 7x the average daily volume of AYSI.OB over the last three months. And there are other Pink Sheets stocks that are more liquid than AYSI ever was on the OTCBB.
Second, illiquid private companies cam still have plenty of value. I own shares of one myself. It's not Facebook, but it's a small Inc. 5000 company that's profitable and growing.
I haven't tried to sell it, because I am bullish on its long term prospects and content to see the company continue to grow, but if I wanted to, I'm confident I'd get a decent valuation for my shares on Second Market or from another current shareholder. There are plenty of investors who invest in illiquid private companies. Your initial comment that the value of a company necessarily goes to zero if it's illiquid is completely false.
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