Here's a little tip, from a little tomato; Take a look.
As weird as it sounds, best price comparison site for the eShop has PlayStation origins; yes, you heard that right.
There is a price change history and discount subscriptions, everything a price comparison site should have.
You can even have a wish-list with all your digital desires: https://psprices.com/wish-list/HRNfGKEG
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