Yeah, I was thinking it would be hard to store that amount of data in QR code even if image quality was reduced.
My cousin had an idea to make (print) an album but wanted to do it with QR codes because it would be cheaper to print (only black and white printing is required).
Probably best way to have stable crypto is to have the crypto inherently provide some kind of service, something like filecoin. In that case value of crypto would be closely tied to memory/storage price.