@SupaPhly part of the reason could be that they are more responsive to FOREX fluctuations than MS or Valve. The other reason is that we are so small for Sony that they can't be bothered to match what happens on the other platforms.
If you have both consoles it allows you to price shop, i've picked up a few games this way.
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Pokemon GO Plus
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Travel between the real world and the virtual world of Pokemon with Pokemon GO for iPhone and Android devices. With Pokemon GO, you'll discover Pokemon in a whole new world - your own! Pokemon GO is built on Niantic's Real World Gaming Platform and will use real locations to encourage players to search far and wide in the real world to discover Pokemon. Pokemon GO will allow players to find and catch more than a hundred different Pokemon as they explore their surroundings.
The Pokemon video game series has used real - world locations such as the Hokkaido and Kanto regions of Japan, New York, and Paris as inspiration for the fantasy settings in which its games take place. Now the real world will be the setting!
Get on your feet and step outside to find and catch wild Pokemon. Explore cities and towns around where you live and even around the globe to capture as many Pokemon as you can. As you move around, your smartphone will vibrate to let you know you're near a Pokemon. Once you've encountered a Pokemon, take aim on your smartphone's touch screen and throw a Poke Ball to catch it. Be careful when you try to catch it, or it might run away! Also look for PokeStops located at interesting places, such as public art installations, historical markers, and monuments, where you can collect more Poke Balls and other items.