They are nomad hexes, not castle hexes. I see no reason they would get the 3 point castle bonus merely because they both happen to have silver frames.
If it were intended that nomad locations also get 3 points, then surely the basic rules would say "hexes with silver frames" instead of saying "castle hexes", or the Nomads expansion rules would mention that nomad hexes also give 3 point bonuses.
That is the way that we have been playing it. The interesting thing about that is you can place your settlement next to a nomad camp just to get the tile and then move that settlement next to another nomad camp to get the tile and you don't lose anything as you would loose the tile with the other location tiles. I could see getting negative points for moving away from the nomad camp to make that less appealing.
Last edited Thu Jan 10, 2013 4:26 pm (Total Number of Edits: 1)