It's worth noting that they don't include digital sales, which is where most pc sales are made.
EDIT:@Sanquine90
Yes, that's true. But the pc digital market is much larger than the Vita market. You can look on Steam for an idea of how much larger that market is if you want.
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EDIT:@Sanquine90
Yes, that's true. But the pc digital market is much larger than the Vita market. You can look on Steam for an idea of how much larger that market is if you want.