TheGreatOther said:
Twilight Princess only sold around 6 million on Wii's 100 million installbase, so I don't think it matters how much a console sells, it's going to stay in that 5-6 million range. |
http://www.vgchartz.com/game/4573/the-legend-of-zelda-twilight-princess/
Not that the gist of your post is wrong, you're right that for any console Zelda we can assume around 5m given history and sales across the series only seem to be influenced by install-base in a very small way. It has quite a consistant fan-base.