They should have alot of extra to work with since the figure they gave was if bitcoin was priced around $90.
The price is still around $95 on the "real" exchanges. MtGox price is b.s. because you are seriously limited in how much you can withdraw in USD ($1k a day). It would be kind of difficult to fund a business that requires $100k+ payments by selling BTC there.
Although this "The price is higher in China" thing is certainly interesting to hear...
you can withdraw $100,000 per day from Mt. Gox
there are two levels of additional levels of verification required, and the second level is not published.