Or Black Marsh/ Orsinium for that matter.
And that thing is... freaking different voice actors.
In Oblivion and Skyrim, we had the same VAs for every Orc, Argonian and Khajiit npc.
If there were to be a TES game set in the homeland of one of those races, Bethesda would actually have to go through the trouble of giving them different voices.
Granted, each actor would play more than one character as it's happened in the recent games, but it still would make a great deal of a difference.