As a rule, casual gamers aren't also early adopters. They're not gonna hunt for the system or pay top dollar. You can occasionally get Nintendo gamers to deviate from the status quo of buying Mario, Pokemon, Zelda, etc., but the only example I can think of during the current millenium is Sonic, which isn't that far a stretch from those. The last platinum third party game on a Nintendo console was Derby Stallion 96 on the Super Nintendo. FFCC, which I'd put in the same boat as DQS, moved 350k units, a modest success, but not spectacular. If DQS does sell well, though, it may pave the way for not a general increase in support but perhaps more spinoffs and/or major franchises.