Yes they both buy used gear all the time.
Keep in mind, they buy it for less than typical re-sale value, because they have to make a profit when they sell it at normal going rates. But it's quicker process than trying to sell on craigslist and hoping someone comes through for you. It's up to you on the trade off of a lower-quicker payment over holding out for more money is worth it or not.
As for that specific item, that is up to the department and store manager.