Obryn
Hero
Got it. And I think that's a danger, depending on how integrated they are into the world.You're right, that was a total brain fart on my part.
My distaste for themes is based on things already mentioned: Another package of doohickeys for new players, one more axis of optimization for veterans, and no clear necessity to bring them in.
My last 2 4e games - lasting 6-7 years or so - have used the Dark Sun themes, and the Zeitgeist themes. And both are well-integrated into the setting lore, and really serve to flesh out the characters. So I've seen firsthand how they can be done just right.