Hmmm, if a FA asks if there's anything they can get you from outside the usual Y cabin, it's hardly being greedy by asking for something from outside the usual Y cabin. That's pretty much the point of the request, isn't it? Bubbles from the front is a pretty easy request to deliver on, and satisfies the unwritten contract between FA and WP, which goes like this:
[I will offer to do something for you which will acknowledge your status, make you feel a bit special, and make your trip in Y just that little bit nicer. You will request something that won't have me running around like a blue-coughd fly, and won't force me to say 'no' to you and embarrass us both.]
Greedy... greedy is ratting off a shopping list of everything from J/F, short of the actual seat itself.
And besides, what sort of heathen can drink F-lounge bubbles, and then willingly regress to cheap Australian swill? That's just not on.