Where is the best place to buy in dips? When spot goes up so do prices, however the same can't really be said for when it goes down. What sites or dealers are usually pretty quick to respond to fluctuations and not just become "out of stock"?
http://www.bullionbourse.com/ are good. Of course like others they raise their prices a lot sooner than they drop them but they do update throughout the day.
goldstackers unallocated is good, I used them today and to take physical delivery is competetive too I think bullionbourse is a little bit expensive compared to others ive looked at also spotmex.com sometimes has people selling pm's near spot