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ioi said:


We could update the PS2 figures on a quarterly / monthly or even weekly basis but it would just be doing what nexgenwars did when it was around which was to keep incrementing a number based on a recent trend which is dangerous ground to be on. PS2 Sales may suddenly plummet in developing regions if PS3 gets cheap enough and we could end up a million higher than reality.

In all honesty, I doubt many people (beyond 5-10 of you here) really care about PS2 sales enough to warrant updating it any more than once or twice a year as we get fresh data. If William hasn't made this mistake with the article we wouldn't even be having this conversation...

Monthly and Weekly would be wrong to do imo. What were suggesting is using the shipment numbers from Sony to estimate PS2 Quarterly sales.

Carl2291 said:

I would say that PS2 shipments/sales could be roughly figured out using the PS3 numbers here. Could only be done every 3 Months though with the shipment reports.

If we know our PS3 numbers are accurate with the mix of shipment data, NPD and Nintendo charts... And we know how much PS3s are usually on shelves/ships... We should be able to get rough PS2 shipment numbers.

Imagine this - Sony announce 4 Million PS3/PS2 shipments for a Quarter. We know that the PS3 had sold 2.5 Million and can estimate say, 800k in supply. That would leave us with 700k PS2s shipped for the Quarter. Depending on the Quarter, it should be easy to figure out demand by looking at past trends. 500k sold with 200k on shelves? 550-150? 450-250? While its not exactly accurate, I think it would be much better than leaving numbers for over a Year then reporting them as numbers from right now.

I think that post explains it well... And the bolded is probably very true