Yes I think there is a lot of potential here.
Gold will be more and more popular, Americans will begin to realize their devalued currency is just paper backed by infinite debt and get into precious metals.
Nice pick up, right now undeveloped low $xxx
Could make for a nice informative site where different sellers are listed - as some lock in lower prices when prices are down - and some will have certain coins that others will not have.
I know I'd like to know of a site that organized sellers on one user friendly page.
Also a venue for ordinary people to trade or sell their own gold would be cool.