new gba games cost $30, there are exceptions both more expensive and less expensive, but that's the standard. DS games will be $35 to $40, I'd say that both prices will be the standard for DS, although probably the majority will be $35 unless they get stupid and think $40 isn't bad. If the PSP debuts strong, I wouldn't be surprised for just about all DS games to not be more than $35. As for PSP game prices, I'd say $35 to $40 as well, although they may have an easier time having their games at $40 be "not too expensive" by consumers since they'll have better graphics, music quality, and more content than DS games given the medium.