In DS9 The Search, Quark explains to Cpt Sisko that's he trusts he'll be safe booking passage back to the Alpha Quadrant from Karemma, because
He [Ornithar] may serve the Dominion, but I'm the one lining his pockets with latinum. I'll get passage on the next freighter back ...
So even though I don't remember hearing anyone order a glass at Quark's ever, Tulaberry Wine must just be killing it in the Alpha Quadrant because the way Quark talks, this guy is getting paid.
So is Latinum just so universally scarce and valuable that it has developed into the currency in the Gamma Quadrant, same as it has in the Alpha Quadrant, or have the Ferengi introduced it there in such a short time? If Alpha/Gamma Quadrant commerce is explored in the series any further or in novels or comics, I'd like to know how this is addressed.