Are the PS4 and Xbox One really that expensive, historically? | Ars Technica
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PS4 500GB with 3 PS Hits Game Bundle (PS4) (Exclusive to Amazon.co.uk) | Amazon price tracker / tracking, Amazon price history charts, Amazon price watches, Amazon price drop alerts | camelcamelcamel.com
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Today, Sony is selling PS4 20th Anniversary Edition consoles for just £19.94 each | Eurogamer.net
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List of best-selling PlayStation 4 video games - Wikipedia
Sony PlayStation 4 500GB Console (Black) : 1: Amazon.co.uk: PC & Video Games
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Buy Sony PlayStation 4 (PS4) Slim from £212.99 (Today) – Best Deals on idealo.co.uk
Are the PS4 and Xbox One really that expensive, historically? | Ars Technica
How Low Will the Price of PS4 Go? | NeoGAF
