The thing about Visa gc's that I dislike is that you have to make the purchase for the exact amount on it or less, and the Disney cashiers told me that I could not cash out the extra. It means that you often lose a little of the money on it unless you buy something that costs exactly what the visa has on it without going over. That's one reason why I prefer regular gift cards. When I do get those prepaid visas--usually as rebates for tires etc--I use them to buy Disney gift cards where I can select the exact amount that's on the card. It bugs me to lose even a dollar, ha ha.
Edited to say: I just realized you may be getting the kind you can reload, so the above would not hold true in that case. The ones I get don't allow you to reload them.