On December 3rd, 1994; Sony decided to release a console called the "PlayStation", which would sell for $299 on release. This would be the official start of the Playstation lineup. The PlayStation would be a huge success and sell over 36 million units.On March 4th, 2000, Sony released the successor to the PlayStation, the PlayStation 2. The PlayStation 2 sold for $299 and was a huge success, selling over 159 Million units.Playstation 3November 11th, 2006 On November 11th, 2006; Sony released the PlayStation 3. The release of PS3 was sort of a flop by selling at a minimum of $499 due to many useless features that were on the PS3, The PS3 tried to be an "All in one" console that could combine stuff like Blu-ray players. But people wanted the PS3 purely for gaming. Compared to the Xbox 360 selling for a minimum of $299, the 360 was a obvious choice.PlayStation 4 ProNovember 10th, 2016 The PS4 Pro was released on November 10th, 2016 and was the "Ultimate" version of the PS4, coming with much better specs such as the ability to play games at 4K 30 FPS and released with only a 1 TB option. The PS4 Pro also had better cooling causing it to rarely or never overheating.