There has been a lot of attention paid lately to the rather tepid response for the PlayStation Vita over in Japan. According to Media Create data, a mere 18,361 Vita units sold last week. That boosted the number over 500,000 units overall, and it took just shy of a month to reach that benchmark. It's likely that you've read the doom-and-gloom stories about the Vita and how disappointing that sales have been over there. Some analysts are worried, some consumers are worried, but Sony isn't worried yet.