Adventure games are dead, no-one in America wants to play them anymore. If a game depends on text and thinking instead of fast paced run, jump, and shoot gameplay it just won't sell.
Metroid Prime Hunters sold fantastically, while Phoenix Wright is now a rarity in America.
Text dependant games are a thing of the past I'm afraid.
I'm done putting links in my signature because every time I do it just links to some old crap I've long since stopped updating.