What's the difference?

Ok... I'm kind of confused here.

What exactly is the difference between a "Flask of Firewater" and other Aged X Ales, and other 5-level intoxication items? I ask because I got a bunch of the latter from Nicky and when I try to sell them, I always get whispers asking if I have firewater instead? Some of them even seem willing to pay extra.

Is it just the drunk effect that makes it worth more? What am I missing?

If they're collecting stacks of alcohol they probably just want one kind to keep the confusion and clutter down.

No difference otherwise. One option is that they're morons.

They probably already have Firewater and just want to keep the inventory/storage slot down.

Also yeah they probably have no idea about what drunk level the alcohol you're selling is.

The icon for Aged Dwarven Ale and Dwarven Ale are the same. Perhaps they are trying to avoid confusing them (or less likely, being scammed).

That... and there is a different visual effect (which I and most drunkards turn off anyways so they can still play the game).

But mostly A11Eur0 is on the money on this.

If you find someone drunk enough, the answer is "Nothing!"

Isn't there a site dedicated to GW's proofs?

it is the effect i assume, some drinks make it hard to see, firewater, shamrock ale,cider and absinthe are among the clearest view
(for us drunken master noobs)