Whats is the recommended number of sales for a system or a game in a week?

[HappySqurriel]

It depends on the week but (typically) 10,000 or less is where consoles that are 'failing' spend most of their time, 10,000 to 30,000 is where 'losing' consoles reside and 30,000+ is where the dominant console's live; the DS Lite's 100,000+ sales are unprecidented.