It may not hurt if you have the time, but that one was kinda "outlandish" as you say. The whole promo is to give free video credit which costs Amazon $0. Exchanging that to real Amazon credit, costs them actual money.
Also, the $0.02 item that came back "in stock" won't help. If it ships in 1-2 months, it might not actually ship until the expiration date of this offer.