Looking forward to Amazon adopting cryptos. I heard Overstock want to seriously compete with them at this aspect. 
The only reason you can rejoice is that in that case, the price would jump 15-20%, and then the whole thing would calm down as was the case with PayPal and its involvement in Bitcoin which today few people even mention. Giving someone the opportunity to pay that Bitcoin does not mean that he will do it, because how many people actually use Bitcoin to pay for goods and services, maybe 10%?
But Amazon seems to be serious about developing cryptocurrencies. not without the aim of opening job vacancies to be in the position of blockchain and cryptocurrency experts.
As far as I know Amazon has opened only one position for business in the field of cryptocurrencies -> Digital Currency and Blockchain Product Lead.
Bitcoin is not mentioned anywhere, but CBDC and blockchain are mentioned, which probably suggests that they will work on their own cryptocurrency, which means that we should not be overly happy about such a development.