[quote name='epobirs']You are completely disconnected from reality if you think the PSP has a lower bill of materials than the DS. The PSP screen alone costs a good deal more than both DS screens combined. The UMD drive, which has no direct equivalent in the DS, is another significant expense. The semiconductor elements, just in sheer transistor counts, make for substantially greater sunk cost per unit on the PSP when compared to the DS chipset.
The difference in sales ratios is nowhere near 3:1, not even 2:1. The most recent figures from Japan (where weekly sales are more openly disclosed and both units have settled from launch hysteria) have the DS moving 55K units to the PSP's 43K units. However, the Year To Date figure has the PSP at 623K to 485K for the DS. As it stands, the bulk of the DS' advantage in installed base is still attributable to an earlier launch. The Ds will likely still be in the lead on units sold after each has had a year on the shelves but that is far from the whole story. The question remains which market will deliver the greater software sales and in turn actual net revenues.
Installed base is Goal #1 in establishing a platform but can only be carried so far. The PS2 is the global champ thanks to being so far ahead in sheer number of machines. If you take the sales number for Xbox software and scale it by bringing the Xbox installed base to within 70% of the PS2, the Xbox leaps ahead on software revenues. This is largely believed to be driven by the Xbox demogrpahic being older and more affluent than the majority of PS2 owners.
Now, only in a fantasy scenario is the Xbox installed base going to grow by that amount but it serves as a useful model on the PSP/DS competition. Indications thus far are that the PSP can stay within 70% or better of the DS installed base but be a more valuable target platform due to the demographics of who owns it. This market segment is untested and it isn't known if the growth can be sustained but there is only one way to find out.[/QUOTE]
Okay, so maybe I pulled that numbr out of my ass

Never was good with numbers. Also I meant That there was a bigger percent profit, not that the PSP costed more than the DS. I was (and still am) under the impression that Sony always makes the most money out of it's systems because they're internally dveloped, where as MS and Nintendo have 3rd party contracts.