You already said (http://news.ycombinator.com/edit?id=2351451) you'd give cash in that case. It seems clear to me that you're just trying to invent reasons to attack Giftrocket.
You'd use the service. I wouldn't. I argued why I don't see anyone using it. Don't write me off as an internet misanthrope trying to ruin everyone's fun.
edit: I'll be more constructive. I'd consider using this if it somehow felt like a gift card instead of a deposit to my paypal account.