If shops in the US are offered refurb stock, somethings known as B-Stock or GWO stock (good working order) you can bet you last dollar the staff in the shop will grab them before they ever see the light of day. At least thats what happens here in the UK.
The chances of finding refurb stock of current gear are pretty slim, the main reason for this is because not that many go wrong, and a lot of the ones that go wrong will get serviced and returned to the original customer. Hence they never end up as refurb stock.
Sorry if this doesn't help