Great help, linking to an article that is six months old, dated when the coins were just released. There is always a lot of hype and frenzied activity when a new coin comes out. It always dies down. You HAVE to look at what's happening TODAY.
Right now, loose coins from circulation are going in the $2 - $4 range on eBay. Coins that came in the Royal Mint collector's pack are going from $8 - $20.