The press release didn't say pure gold - it said they would recover approximately 850-900 ounces of gold. Which anyone who invests in mining companies wold know that is that they are pulling out of the ground in Peru and then shipping to the US hence raw ore.
But, lets get back to your point of eBay vs the $1,000 per ounce of raw gold. The eBay sold for less than that so again your math was wrong.
Curious, is my math wrong when accounting for the purity levels and discounts?