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PlayStation 4 Will Launch Nov. 15 in U.S., Nov. 29 in Europe | WIRED
PS4 price, hardware specs, and games detailed - ExtremeTech
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PS5 details: games, price, release date, backward compatibility, and more - Polygon
Are the PS4 and Xbox One really that expensive, historically? | Ars Technica
When Did The PS4 Come Out? - PlayStation Universe
The PlayStation 4 Just Got a Major Price Cut | Time
The best PS4 deals and bundles in March 2022 | TechRadar
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36 Years Of Console Prices, Adjusted For Inflation
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Amazon.com: PlayStation 4 Battlefield 4 Launch Day Bundle : Video Games
Chart: Advantage Sony - PS4 Price Undercuts Xbox One by $100 | Statista
Sony Spills the PS5 Launch Dates and Prices | The Motley Fool
