Finally got to play! That was pretty fun game, Dragon.
After you left, I tried a few solo plays trying to customize the random draw. I set the parameters for "4 - 7 cards with tag 'set=Alchemy'," "3 - 6 cards with tag 'set=Base'," and "must include (Village)." What I ended up with was a pretty good set-up.
I definately think Alchemy has cool stuff that makes the potions more worth while, but I would not want to do a completely random draw of all the expansions with potion cards in the mix.
Fortunately, to that end, you can also specify "0-0 cards with tag 'cost-potion'."
My only problem with that selection box is that it moves up and down as people enter and leave the room, which makes selecting those parameters a little bit of a dexterity game in itself.