That is to be expected at non-OOT locations (i.e. locations than may get visited by more than 500 people that have heard of DansDeals.com)
Right, im my ares, for e.g Staples has 3 or 4 people buying the Visa or Mastercard GCs in quantity, same for Walmart and Kroger, a few people buying MOs on a regular basis, but at locations with hundreds doing it I am sure it becomes hard or impossible.