Oh, absolutely there are benefits to using credit cards over a Disney Visa Redemption Card. But I was specifically asking why I would use my Disney Visa Redemption Card to purchase a Disney Gift Card, as there is no additional benefit to a Disney Gift Card over a Redemption Card, and in fact, there is one less benefit since a Disney Visa Redemption Card will get you 10% off on certain things on Disney property and a gift card won't. Which is why I usually hold my Redemption Card and wait until I'm on property to use it. Speaking of, any of the restaurants on property which give you 10% off for using a Disney Visa card to pay (there are quite a few) will also give you 10% off if you pay with a Redemption Card. I think the merchandise locations on property that give 10% off if you use your Disney Visa will also give the 10% for the Redemption Card. That one I'm not sure of though. Because I always save my Redemption Card and use it to pay for our table service meals.
Like I said previously though, I was just trying to figure out what benefit there was to using a Redemption Card to buy a DGC, which I had seen several people mention doing. I now understand though, that the benefit is in using a cashback website like RMN because you'll turn your Redemption Card into a DGC plus have cash in your pocket. Granted, if you were planning to use your Redemption Card somewhere on property that would give you a 10% discount, then you really didn't accomplish much. But I guess I'd rather have that 10% as cash in my pocket from using RMN, than as a future discount on property.