_Plus_ it turns out that what GOG was releasing today wasn't Master of Orion, but a Master of Orion + Master of Orion 2 bundle! Both games for just $6! :) I suppose that next time i'm wavering on a purchase i ought to remember that i kind of owe them, since i would have happily paid $6 individually for each of those games.
Edit: And their "Upcoming" list says they'll have Master of Magic "soon"!! :)