Industry NewsPachter: Wii to Dominate as Xbox 360 Outsells PS3 in May GameDaily - June 9, 2008
Submitted by Jlmadyson (1497)
at 8:41AM PST on June 9, 2008
The Wii is expected to sell triple the units for Xbox 360 and more than triple the PS3. Software sales growth should be in the 30-39 percent growth range, according to analyst forecasts.
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So, this is the cause of today's PS3 May significant drop, and X360 May significant increase. It seems that some player base their purchase or selling on this.