I agree that prices will vary from store to store, and also rom country to country. I checked 3 stores and in all three the difference was around those 70 €.
And you actually make a good point, AMD f*cked up by not launching a 5700 processor to fill that huge gap between the 5800 and 5600 processors like they did with its previous Zen processors.
Well... there's the 5700G, and at 380€, it is 40€ cheaper than the 5800X and fitting in between the 5800X and 5600X - just not really in the middle of the two.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/