I respect the work that went into the numbers. However, I reject the use of the phrase "will essentially become Xbox console exclusives." In some contexts, sure. But in others, no. The vast majority of people that will ever play a game that falls into this category have already played it and will still be able to play on either PS3 or Xbox 360 console after this store switches off. Hardly what I'd call a defacto exclusive.
Imagine someone who is just getting into console gaming.
One user base will be able to purchase a title from 2 generations back (like Arkham Origins) on a current-generation console.
The other would need to buy a separate piece of hardware and a used disk copy for it.
Which one would be more likely to be described as "not readily available" in this situation?