We’re not sure why Sony and their PlayStation Network are so late to this party, but Amazon has begun selling digital content from the PlayStation Store. While Microsoft and Nintendo have been doing this for months now, Sony had been reluctant for some odd reason to jump on this ship as well. One of the biggest advantages of purchasing a downloadable title from Amazon instead of the PlayStation Store itself is the lack of sales tax found inside the PSN Store itself.
Outside of saving this .20 or so every purchase, there isn’t many other differences between buying it in store or buying at at Amazon. The pricing isn’t different at all and everything is pretty much a carbon copy of one another.